Hamartiology | Faithful To The Word

Systematic Theology: Hamartiology

The Doctrine of Sin

“Therefore, just as through one man sin entered into the world,

and death through sin, and so death spread to all men,

because all sinned.”

Romans 5:12

The dark counterpart to the glory of creation, and the necessary backdrop against which the gospel shines with blinding brilliance. This series examines the origin of sin in the fall of Adam, the nature and extent of original sin, the imputation of Adam's guilt to his posterity, the doctrine of total depravity, the distinction between original and actual sin, and the devastating effects of the fall on every dimension of human existence: mind, will, affections, body, and relationships. No one can understand the gospel who has not first understood the catastrophe from which the gospel rescues us. Hamartiology does not merely inform the intellect; it humbles the heart and prepares the soul to receive the grace of God with the desperation and gratitude it deserves.

PAGE CONTENTS

LESSON

Lesson 1: The Unpopular Doctrine — Why the Church Must Teach About Sin

No One Can Understand the Gospel Who Has Not First Understood the Catastrophe

The modern avoidance of sin: the cultural pressure to speak of brokenness rather than rebellion, dysfunction rather than depravity, and mistakes rather than moral guilt before a holy God
The theological necessity: without a robust doctrine of sin, the doctrines of grace collapse — the cross makes no sense if there is no wrath, and salvation is unnecessary if there is no condemnation
The diagnostic function of Hamartiology: before the physician can prescribe the remedy, the disease must be accurately diagnosed — sin is the diagnosis that makes the gospel the cure
The pastoral urgency: a church that minimizes sin will inevitably minimize grace — “Where sin increased, grace abounded all the more” (Romans 5:20) presupposes the devastating reality of sin
The Reformation conviction: the five solas make sense only against the backdrop of total human inability — if man is not utterly lost, he does not need a Savior who does everything
The relationship between Hamartiology and every other locus: sin touches Theology Proper (God’s holiness and justice), Christology (the necessity of the atonement), Pneumatology (the Spirit’s regenerating work), Soteriology (salvation from sin), Ecclesiology (church discipline), and Eschatology (the final judgment)
The posture of the student: this is not a theoretical exercise but a personal confrontation — to study sin rightly is to study yourself, and to find in your own heart everything that made the cross necessary
Key Texts: Romans 3:10–18, 23; 5:12, 20; 6:23; 1 John 1:8–10

LESSON

Lesson 2: Sin in the History of Doctrine

From the Garden to the Modern Denial — How the Church Has Understood Sin

The patristic period: early reflections on sin, the development of the concept of original sin, and the Eastern emphasis on death and corruption vs. the Western emphasis on guilt
The Pelagian controversy (5th century): Pelagius — “Adam’s sin affected only himself; human beings are born morally neutral and capable of choosing good without grace”
Augustine’s response: original sin is inherited, human nature is totally corrupted, the will is enslaved, and no one can come to God apart from sovereign, prevenient grace
The Semi-Pelagian compromise: “Grace is necessary, but the first step toward God is the sinner’s own free will” — condemned at the Council of Orange (529 AD) but persistently resurrected throughout church history
The medieval development: Aquinas on the nature of sin, the distinction between mortal and venial sin, and the role of grace in restoring the will
The Reformation: Luther’s The Bondage of the Will (1525) and Calvin’s doctrine of total depravity — the radical reassertion of Augustinian anthropology
The Arminian position: prevenient grace restores sufficient ability to respond to the gospel — and the Reformed critique
The modern erosion: the Enlightenment rejection of original sin, the therapeutic redefinition of sin as “dysfunction,” and the progressive abandonment of moral categories in favor of psychological ones
The Reformed recovery: a return to the full, biblical, Augustinian-Reformed doctrine of sin — not for morbidity but for the sake of the gospel
Key Texts: Romans 5:12–21; Ephesians 2:1–3; Psalm 51:5; Jeremiah 17:9

LESSON

Lesson 3: The Temptation in the Garden — How Sin Entered the World

The Serpent, the Lie, and the Unraveling of Everything

The setting: the garden of Eden — a place of perfection, provision, and unbroken communion with God
The serpent: identified elsewhere in Scripture as Satan (Revelation 12:9; 20:2) — the most cunning of the beasts, approaching Eve with subtlety rather than force
The anatomy of temptation: (1) questioning God’s word — “Indeed, has God said?” (Genesis 3:1); (2) denying God’s judgment — “You surely will not die!” (3:4); (3) impugning God’s character — “God knows that… you will be like God” (3:5)
The three dimensions of the temptation (1 John 2:16 applied): the lust of the flesh (“good for food”), the lust of the eyes (“a delight to the eyes”), the pride of life (“desirable to make one wise”)
Eve’s response: she saw, she took, she ate, and she gave to her husband who was with her, and he ate (Genesis 3:6)
Adam’s culpability: Adam was not deceived (1 Timothy 2:14) — he sinned with full knowledge, in open rebellion, and as the federal head of the human race
The theological significance: sin entered the world not through ignorance or accident but through deliberate, voluntary disobedience against a God who had given every reason to trust and obey
Key Texts: Genesis 3:1–7; 1 Timothy 2:14; 2 Corinthians 11:3; Revelation 12:9; 1 John 2:16

LESSON

Lesson 4: The Immediate Consequences of the Fall

What Sin Did in the Moment It Was Committed

Shame and self-awareness: “The eyes of both of them were opened, and they knew that they were naked” (Genesis 3:7) — the immediate loss of innocence
The instinct to cover: they sewed fig leaves together — the first human attempt at self-justification, the prototype of all religion apart from grace
The instinct to hide: “The man and his wife hid themselves from the presence of the Lord God” (Genesis 3:8) — sin produces alienation from God, the reversal of the communion for which humanity was created
The instinct to blame: Adam blamed Eve and ultimately blamed God (“The woman whom You gave to be with me” — Genesis 3:12); Eve blamed the serpent (3:13) — the refusal to accept responsibility is itself a fruit of the fall
Spiritual death: “In the day that you eat from it you will surely die” (Genesis 2:17) — Adam did not die physically that day, but he died spiritually — his soul was separated from God, the source of all true life
The curse upon the serpent, the woman, the man, and the ground (Genesis 3:14–19): pain in childbearing, toil in labor, thorns and thistles, and the sentence of physical death — “Dust you are, and to dust you shall return”
Expulsion from Eden: “The Lord God sent him out from the garden of Eden” (Genesis 3:23) — banishment from the presence of God and the tree of life
The first act of grace: “The Lord God made garments of skin for Adam and his wife, and clothed them” (Genesis 3:21) — God covering their shame at the cost of a life — the first foreshadowing of the atonement
Key Texts: Genesis 3:7–24; Romans 6:23; Ephesians 2:1; Genesis 2:17

LESSON

Lesson 5: The Spread of Sin — From the Garden to the Flood

How Quickly Sin Corrupted the World God Had Made

Cain and Abel (Genesis 4): the first murder — within one generation, sin progresses from disobedience to fratricide
The line of Cain (Genesis 4:17–24): the development of culture alongside the development of violence — Lamech’s boast of vengeance (4:23–24) as the escalation of sin
The line of Seth (Genesis 4:25–5:32): the godly line through whom the promise of Genesis 3:15 would be preserved — yet even this line was not immune from the effects of sin
The days of Noah (Genesis 6:1–8): “The Lord saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was only evil continually” (Genesis 6:5) — the most devastating assessment of the human condition in all of Scripture
The grief of God: “The Lord was sorry that He had made man on the earth, and He was grieved in His heart” (Genesis 6:6) — anthropopathic language expressing the profound offense of sin against a holy God
The judgment of the Flood: the universal deluge as the righteous response of God to universal corruption — sin brings death, and not merely the death of the individual but the devastation of the whole created order
The preservation of Noah: “Noah found favor in the eyes of the Lord” (Genesis 6:8) — even in judgment, grace preserves a remnant
The post-Flood assessment: “The intent of man’s heart is evil from his youth” (Genesis 8:21) — the Flood judged sin but did not cure it — the human heart remains corrupt, and only a greater deliverance can save
Key Texts: Genesis 4:1–16; 6:5–8; 8:21; 11:1–9; Romans 1:18–32

LESSON

Lesson 6: The Universal Indictment — Romans 1–3

Paul’s Case That All Humanity Stands Guilty Before God

Romans 1:18–32 — the Gentile world: the suppression of truth, the exchange of God’s glory for idols, and the threefold divine “giving over” (1:24, 26, 28) — God’s judicial abandonment of those who persistently refuse Him
The downward spiral: knowing God (1:21) → refusing to honor Him → futile thinking → darkened hearts → idolatry → sexual immorality → every form of wickedness (1:29–31) — the anatomy of cultural and moral collapse
Romans 2:1–16 — the moral person: those who judge others are equally guilty, because they do the same things — moral knowledge without moral obedience only increases condemnation
Romans 2:17–3:8 — the Jewish world: possession of the Law does not guarantee righteousness — circumcision is of value only if accompanied by obedience, and the Jews have failed to keep the very Law they boast in
Romans 3:9–18 — the universal verdict: “Both Jews and Greeks are all under sin” — Paul’s devastating catena of Old Testament quotations: “There is none righteous, not even one; there is none who understands, there is none who seeks for God”
Romans 3:19–20 — the silencing of every mouth: “Every mouth may be closed and all the world may become accountable to God” — no one has a defense, no one has an excuse, and no one can be justified by works of the Law
Romans 3:23 — the summary: “For all have sinned and fall short of the glory of God” — the most concise statement of the universal scope of human sin in the entire Bible
The theological purpose: Paul builds the case for universal condemnation precisely so that the universal offer of justification by grace through faith (Romans 3:21–26) will be received with the desperation and gratitude it deserves
Key Texts: Romans 1:18–32; 2:1–16; 3:9–20, 23; Galatians 3:22; Psalm 14:1–3; Psalm 53:1–3

LESSON

Lesson 7: What Is Sin? — A Biblical Definition

More Than Mistakes, More Than Weakness — Sin as Offense Against God

Sin as lawlessness (anomia): “Sin is lawlessness” (1 John 3:4) — the violation of God’s revealed moral law
Sin as transgression (parabasis): crossing the boundary God has set — stepping over the line of God’s command (Romans 4:15; 5:14)
Sin as missing the mark (hamartia): falling short of the standard of God’s glory and righteousness (Romans 3:23)
Sin as debt (opheilema): a moral obligation owed to God that we have failed to pay (Matthew 6:12)
Sin as unbelief (apistia): the failure to trust God — the root sin from which all other sins grow (John 16:9; Romans 14:23 — “whatever is not from faith is sin”)
Sin as rebellion (pesha): willful, defiant disobedience against the known will of God — not mere failure but insurrection against the Creator
Sin as corruption (adikia): moral unrighteousness — the perversion of what God made good into what dishonors Him
The Westminster Shorter Catechism, Q. 14: “Sin is any want of conformity unto, or transgression of, the law of God” — sin includes both omission (failing to do what God commands) and commission (doing what God forbids)
The Godward orientation of sin: sin is not primarily a horizontal offense (against other people) but a vertical offense (against God) — “Against You, You only, I have sinned” (Psalm 51:4)
Key Texts: 1 John 3:4; Romans 3:23; 14:23; Psalm 51:4; James 4:17; Matthew 6:12; Isaiah 53:6

LESSON

Lesson 8: The Distinction Between Original Sin and Actual Sin

The Inherited Condition and the Sins That Flow from It

Original sin defined: the guilt and corruption inherited from Adam by all his natural posterity as a consequence of the fall
Original guilt: the legal liability that belongs to every human being because of Adam’s transgression as our federal head (Romans 5:12–19)
Original corruption (also called “inherited depravity” or “inborn sin”): the moral pollution and spiritual inability that pervades every faculty of human nature from conception
Psalm 51:5 — “Behold, I was brought forth in iniquity, and in sin my mother conceived me” — David’s confession that sinfulness precedes any particular sinful act
Ephesians 2:3 — “We were by nature children of wrath” — the condemnation belongs to the nature itself, not merely to individual acts
Actual sin defined: the specific thoughts, words, deeds, and omissions by which we personally violate the law of God
The relationship: original sin is the root; actual sins are the fruit — we sin because we are sinners, not the other way around
The analogy: a poisoned spring (original corruption) necessarily produces poisoned water (actual sins) — the problem is not merely behavioral but constitutional
Key Texts: Psalm 51:5; 58:3; Ephesians 2:1–3; Romans 5:12–19; Genesis 8:21; Job 14:4; John 3:6

LESSON

Lesson 9: Sin of Commission, Sin of Omission, and Degrees of Sin

Is All Sin Equal? The Biblical Evidence

Sins of commission: actively doing what God forbids — lying, stealing, murder, adultery, idolatry
Sins of omission: failing to do what God commands — “Therefore, to one who knows the right thing to do and does not do it, to him it is sin” (James 4:17)
Are all sins equal? In one sense, yes: every sin, no matter how small, is an infinite offense against an infinitely holy God — and every sin deserves death (Romans 6:23)
In another sense, no: Scripture clearly teaches that some sins are more heinous than others — Jesus told Pilate, “He who delivered Me to you has the greater sin” (John 19:11)
The principle of greater light: sin committed with greater knowledge of God’s will incurs greater guilt (Luke 12:47–48; Hebrews 10:26–29)
The Westminster Larger Catechism, Q. 151: sins are more or less heinous according to the persons offending, the parties offended, the nature of the offense, and the circumstances
The unpardonable sin: blasphemy against the Holy Spirit (Matthew 12:31–32; Mark 3:28–30) — the persistent, willful, final rejection of the Spirit’s testimony to Christ — not a single act of doubt but a settled posture of defiant unbelief
The pastoral balance: all sin is serious enough to require the cross; but not all sin is equally heinous in the sight of God — and the church must exercise wisdom in distinguishing between weakness and high-handed rebellion
Key Texts: James 4:17; John 19:11; Luke 12:47–48; Matthew 12:31–32; Numbers 15:30–31; 1 John 5:16–17; Hebrews 10:26–29

LESSON

Lesson 10: The Imputation of Adam’s Sin to All His Posterity

How One Man’s Transgression Became the Condemnation of All

Romans 5:12 — “Through one man sin entered into the world, and death through sin, and so death spread to all men, because all sinned” — the foundational text for the doctrine of original sin
The meaning of “because all sinned” (eph’ hō pantes hēmarton): not “all sinned individually” but “all sinned in Adam” — the aorist tense points to a single, definitive act in the past
Federal (representative) imputation: Adam’s guilt is reckoned to all his posterity because he stood as their covenantal representative — just as Christ’s righteousness is reckoned to all who believe
Romans 5:18–19 — “Through one transgression there resulted condemnation to all men… through the one man’s disobedience the many were made sinners” — the parallelism with Christ’s obedience is the key to understanding Adam’s role
The three views of the imputation of Adam’s sin: (1) the realistic view (Shedd) — we sinned seminally in Adam because we were present in him; (2) the federal view (Hodge, Murray) — Adam’s guilt is legally imputed to us as our representative; (3) mediate imputation — we are condemned on the basis of the corrupt nature we inherit
The predominant Reformed position: federal (immediate) imputation — Adam’s first sin is directly imputed to his posterity, just as Christ’s righteousness is directly imputed to believers (2 Corinthians 5:21)
The justice of imputation: the same representational principle that condemns us in Adam is the principle that saves us in Christ — to reject the former is to undermine the latter
Key Texts: Romans 5:12–21; 1 Corinthians 15:22; 2 Corinthians 5:21; Ephesians 2:3

LESSON

Lesson 11: The Pelagian, Semi-Pelagian, and Arminian Alternatives

What the Church Has Rejected — And Why

Pelagianism: Adam’s sin affected only himself; human beings are born morally neutral (without original sin); grace is helpful but not strictly necessary for obedience; the will is fully free and capable of choosing good
The church’s response: Pelagianism was condemned at the Council of Carthage (418 AD) and the Council of Ephesus (431 AD) — it denies the necessity of grace and renders the cross unnecessary
Semi-Pelagianism: grace is necessary for salvation, but the first movement toward God comes from the human will — God’s grace responds to the sinner’s initiative
The church’s response: Semi-Pelagianism was condemned at the Council of Orange (529 AD) — “The beginning of faith is not due to us but to grace”
Arminianism: prevenient grace (grace that “comes before”) restores sufficient ability to all people to respond to the gospel — God makes salvation possible; the human will makes it actual
The Reformed critique of Arminianism: prevenient grace, as the Arminians define it, is not taught in Scripture — the biblical picture is of sinners who are dead, not merely sick; who are enslaved, not merely weakened; who must be made alive by the sovereign initiative of God
The Synod of Dort (1618–19): the five points of Calvinism (TULIP) as the Reformed response to Arminianism — total depravity as the foundational point from which the other four flow
The pastoral stakes: these are not academic disputes — they determine whether salvation is ultimately a work of God or a cooperative effort between God and man
Key Texts: John 6:44, 65; Romans 9:16; Ephesians 2:1–5, 8–9; Philippians 1:29; 2 Timothy 2:25

LESSON

Lesson 12: The Transmission of Original Sin — How Corruption Passes to Every Generation

Why Every Human Being Is Born Sinful

The universality of sin: “There is no man who does not sin” (1 Kings 8:46); “All have sinned and fall short of the glory of God” (Romans 3:23) — no exception in all of human history except Christ
The inborn nature of sin: sin is not something we learn by imitation — it is something we inherit by nature — “The wicked are estranged from the womb; these who speak lies go astray from birth” (Psalm 58:3)
The testimony of experience: every parent has observed that children do not need to be taught to sin — selfishness, anger, deception, and rebellion emerge spontaneously from the earliest age
The mechanism of transmission: original sin is transmitted from parent to child through natural generation — “That which is born of the flesh is flesh” (John 3:6)
The sinlessness of Christ: if original sin is transmitted through natural generation, how was Christ born without sin? Answer: the Virgin Birth — Christ was conceived by the Holy Spirit, not by natural generation from a human father, and was therefore free from the imputation of Adam’s guilt and the inheritance of Adam’s corruption
The question of infant guilt: are infants guilty before God? The Reformed answer: yes — infants inherit both original guilt and original corruption from conception (Psalm 51:5; Ephesians 2:3) — but God is able to save whom He wills, including those who die in infancy (2 Samuel 12:23)
The hope for infants who die: while Scripture does not give an explicit, comprehensive statement, there is strong pastoral ground to believe that elect infants who die in infancy are saved by Christ and regenerated by the Spirit — the 1689 Confession affirms this hope (Chapter 10, Paragraph 3)
Key Texts: Psalm 51:5; 58:3; John 3:6; Ephesians 2:3; Romans 3:23; 1 Kings 8:46; 2 Samuel 12:23

LESSON

Lesson 13: Total Depravity Defined — What It Means and What It Doesn’t

Every Part Affected, Not Every Part as Bad as Possible

Total depravity defined: the corruption of sin extends to every part of human nature — mind, will, affections, body, conscience, and relationships — so that no faculty is left untouched and no area of human life is exempt from sin’s influence
What total depravity does NOT mean: it does not mean that every person is as wicked as they could possibly be; that unregenerate people can do nothing that is outwardly good; or that the image of God has been completely destroyed
The extent of depravity: “every intent of the thoughts of his heart was only evil continually” (Genesis 6:5) — the problem is not that some parts of us are sinful while other parts are untouched; the problem is that sin has invaded everything
The noetic effects of sin: the mind is darkened (Ephesians 4:17–18) — sin affects our thinking, our reasoning, and our ability to perceive spiritual truth
The volitional effects of sin: the will is enslaved (John 8:34; Romans 6:17–20) — the unregenerate person does not merely choose not to come to God; they cannot come (John 6:44)
The affective effects of sin: the heart is corrupt (Jeremiah 17:9) — our desires, loves, and delights are disordered and turned away from God toward idols
Common grace and the restraint of sin: God, in His common grace, restrains the full expression of human depravity in the world — not every person acts out the full potential of their corruption, because God providentially limits it (Genesis 20:6; Romans 13:1–4)
The crucial distinction: total depravity is an extensive concept, not an intensive one — it describes the breadth (every part is affected) not necessarily the depth (every part is as bad as it could be) of human corruption
Key Texts: Genesis 6:5; Jeremiah 17:9; Ephesians 4:17–19; Romans 8:7–8; John 6:44; Titus 3:3; Isaiah 64:6

LESSON

Lesson 14: Total Inability — The Sinner’s Utter Helplessness Before God

Dead in Sin, Not Merely Sick in Sin

Total inability defined: as a consequence of total depravity, the unregenerate person is spiritually unable to do anything truly pleasing to God, to understand spiritual truth savingly, or to come to Christ in repentant faith apart from the sovereign, regenerating work of the Holy Spirit
The biblical language of death: “You were dead in your trespasses and sins” (Ephesians 2:1) — not sick, not drowning, not unconscious, but dead — and dead people cannot cooperate with their own resurrection
The biblical language of slavery: “Everyone who commits sin is the slave of sin” (John 8:34) — slaves cannot free themselves; only an emancipator can set them free
The biblical language of blindness: “The god of this world has blinded the minds of the unbelieving” (2 Corinthians 4:4) — blind people cannot choose to see; they must be given sight
The mind cannot: “The mind set on the flesh is hostile toward God; for it does not subject itself to the law of God, for it is not even able to do so” (Romans 8:7)
The will cannot: “No one can come to Me unless the Father who sent Me draws him” (John 6:44); “No one can come to Me unless it has been granted him from the Father” (John 6:65)
The flesh profits nothing: “That which is born of the flesh is flesh” (John 3:6) — the natural person cannot produce spiritual life any more than flesh can produce spirit
The theological implication: if total inability is true, then salvation must be entirely a work of God — the dead must be raised, the blind must be given sight, the slaves must be freed, and none of this can happen apart from sovereign, efficacious grace
Key Texts: Ephesians 2:1–5; John 6:44, 65; 8:34; Romans 8:7–8; 2 Corinthians 4:4; 1 Corinthians 2:14; John 3:3, 6

LESSON

Lesson 15: The Radical Corruption of the Heart

Jeremiah 17:9 and the Depths of Human Self-Deception

Jeremiah 17:9 — “The heart is more deceitful than all else and is desperately sick; who can understand it?” — the most devastating description of the human heart in all of Scripture
The heart as the center of the person: in biblical anthropology, the “heart” is not merely the seat of emotion but the core of the whole person — the wellspring of thought, desire, intention, and moral direction
Jesus’ teaching: “For out of the heart come evil thoughts, murders, adulteries, fornications, thefts, false witness, slanders” (Matthew 15:19) — sin is not primarily an external problem; it is an internal condition
The self-deception of sin: the heart is “deceitful” — it deceives even its own possessor — the sinner is blind to the depth of his own corruption (Proverbs 16:2; 21:2 — “Every man’s way is right in his own eyes, but the Lord weighs the hearts”)
The “desperately sick” (anush) heart: the Hebrew word carries the sense of “incurably diseased” or “beyond remedy” — the problem is not that the heart needs improvement; it needs replacement
The promise of the New Covenant: “I will give you a new heart and put a new spirit within you; and I will remove the heart of stone from your flesh and give you a heart of flesh” (Ezekiel 36:26) — the only solution to a corrupt heart is a sovereign heart transplant
The pastoral implication: we must never trust our own hearts as the final arbiter of truth or morality — the heart that tells us we are fine apart from God is the same heart that is “more deceitful than all else”
Key Texts: Jeremiah 17:9–10; Matthew 15:18–20; Proverbs 16:2; 21:2; Ezekiel 36:25–27; Mark 7:20–23

LESSON

Lesson 16: Luther, Erasmus, and the Great Debate

Why the Tree, Why the Test, and What Was at Stake

The historical context: in 1524, Erasmus of Rotterdam published On the Freedom of the Will, arguing that the human will retains the capacity to choose good and cooperate with grace
Luther’s response: in 1525, Martin Luther published The Bondage of the Will (De Servo Arbitrio), which he considered his most important theological work — a devastating argument that the unregenerate will is enslaved to sin and cannot choose God apart from sovereign grace
Luther’s central thesis: “Man’s will is like a beast standing between two riders. If God rides, it wills and goes where God wills. If Satan rides, it wills and goes where Satan wills. Nor may it choose to which rider it will run.”
The distinction between freedom and ability: the unregenerate person is free in the sense of acting voluntarily (no one forces him to sin) but unable in the sense that his corrupted nature always inclines him toward sin and never toward God
The philosophical distinction: compatibilist freedom (the Reformed position) vs. libertarian freedom (the Arminian position) — the will is free from external compulsion but not free from internal corruption
Calvin’s formulation: the will is “necessarily, but not compulsorily” inclined toward evil — the sinner sins because he wants to sin, and he cannot want otherwise apart from regenerating grace
The Edwards contribution: Jonathan Edwards, The Freedom of the Will (1754) — the will always chooses according to its strongest inclination, and the unregenerate will’s strongest inclination is always away from God
The theological stakes: if the will is free in the libertarian sense, then salvation depends ultimately on the sinner’s choice; if the will is bound, then salvation depends entirely on God’s sovereign grace — and the latter is precisely what Scripture teaches
Key Texts: John 8:34–36; Romans 6:17–20; 8:7–8; 2 Timothy 2:25–26; Philippians 2:13; John 1:12–13

LESSON

Lesson 17: The Will in Each State of Humanity

Augustine’s Four States and the Journey from Eden to Glory

State 1 — Pre-fall (posse peccare, posse non peccare): Adam was able to sin and able not to sin — genuine moral freedom in a state of original righteousness
State 2 — Post-fall / unregenerate (non posse non peccare): fallen humanity is not able not to sin — the will is enslaved, and the sinner cannot choose God, love God, or please God apart from grace
State 3 — Regenerate / in grace (posse non peccare): the believer, by the power of the indwelling Spirit, is once again able not to sin — though the struggle with remaining corruption continues (Galatians 5:17)
State 4 — Glorified (non posse peccare): in the final state, the redeemed will be unable to sin — a higher state than Adam’s original condition, because the will is confirmed in righteousness forever
The Augustinian trajectory: the history of the human will moves from freedom, through bondage, through progressive liberation, to final and permanent perfection
The present state of the believer: already freed from the dominion of sin (Romans 6:14) but not yet freed from the presence of sin (Romans 7:21–25; 1 John 1:8) — the war between the Spirit and the flesh is real and ongoing
The eschatological hope: the day is coming when the believer will be entirely and permanently free from sin — “We will be like Him, because we will see Him just as He is” (1 John 3:2)
The pastoral application: in the present age, the Christian life is a battle — but it is a battle fought from a position of victory, not toward a hope of possible victory
Key Texts: Romans 6:6–14; 7:14–25; Galatians 5:16–17; 1 John 1:8; 3:2; Philippians 1:6; Revelation 21:27

LESSON

Lesson 18: Spiritual Death — Separation from God

The Gravest Consequence of the Fall

Spiritual death defined: the separation of the human soul from God, the source of all true life — the condition into which every human being is born as a consequence of Adam’s fall
Ephesians 2:1 — “You were dead in your trespasses and sins” — spiritual death is not a metaphor; it is a real, present, devastating condition
Isaiah 59:2 — “Your iniquities have made a separation between you and your God, and your sins have hidden His face from you”
The spiritual deadness of the natural person: unable to perceive spiritual truth (1 Corinthians 2:14), unable to please God (Romans 8:8), unable to come to Christ (John 6:44), and unaware of the danger (Proverbs 14:12)
Spiritual death as the root of all other consequences: physical death, relational brokenness, moral corruption, and eternal judgment all flow from the fundamental rupture between the creature and the Creator
The reversal in Christ: “Even when we were dead in our transgressions, [God] made us alive together with Christ” (Ephesians 2:5) — salvation is resurrection from the dead
Key Texts: Ephesians 2:1–5; Isaiah 59:1–2; Romans 8:6–8; Colossians 2:13; 1 Corinthians 2:14; John 5:24

LESSON

Lesson 19: Physical Death, Suffering, and the Curse

The Visible Consequences of an Invisible Rebellion

Physical death as a consequence of sin: “The wages of sin is death” (Romans 6:23) — death entered the world through Adam’s sin and spreads to all because all sinned (Romans 5:12)
The curse on creation: “Cursed is the ground because of you” (Genesis 3:17) — the fall did not merely affect humanity; it subjected the entire created order to futility, decay, and death (Romans 8:20–22)
Pain in childbearing (Genesis 3:16): the multiplication of sorrow in the very act by which life continues — a constant reminder that the world is not as it should be
Toil and frustration in work (Genesis 3:17–19): the cultural mandate remains, but it is now carried out under the burden of thorns, thistles, sweat, and futility
Suffering as a consequence of living in a fallen world: not all suffering is the direct result of personal sin (John 9:1–3), but all suffering is the consequence of living in a world ruined by sin
The universality of death: “It is appointed for men to die once and after this comes judgment” (Hebrews 9:27) — death is the great equalizer, the inescapable testimony that sin has conquered the human race
The hope of reversal: “The last enemy that will be abolished is death” (1 Corinthians 15:26) — Christ’s resurrection is the firstfruits of the final destruction of death itself
Key Texts: Romans 5:12; 6:23; 8:18–25; Genesis 3:14–19; 1 Corinthians 15:21–26; Hebrews 9:27

LESSON

Lesson 20: Eternal Death — The Final Judgment and the Reality of Hell

The Wages of Sin Paid in Full

Eternal death defined: the final, irrevocable, conscious separation of the unrepentant sinner from God in the state of eternal punishment
The teaching of Jesus: no one in the New Testament spoke more frequently or more soberly about hell than Jesus Himself — “These will go away into eternal punishment, but the righteous into eternal life” (Matthew 25:46)
The language of hell: Gehenna (Matthew 5:22, 29–30; 10:28); outer darkness (Matthew 8:12; 22:13; 25:30); the lake of fire (Revelation 20:14–15); unquenchable fire (Mark 9:43); the worm that does not die (Mark 9:48); eternal destruction (2 Thessalonians 1:9)
The nature of hell: conscious, ongoing suffering under the just wrath of God — not annihilation, not temporal punishment, and not remedial discipline
Against annihilationism (conditional immortality): the same word “eternal” (aionios) is used for both punishment and life in Matthew 25:46 — if the life is eternal, the punishment is eternal
Against universalism: Scripture is unambiguous that not all will be saved (Matthew 7:13–14; Revelation 20:15) — the broad road leads to destruction, and many travel it
The justice of eternal punishment: sin against an infinitely holy God incurs an infinite debt — and since finite creatures can never exhaust an infinite debt, the punishment continues without end
The pastoral necessity: the reality of hell is not a doctrine to be preached with glee but with tears — and it is precisely the horror of hell that gives the gospel its urgency and the cross its glory
Key Texts: Matthew 25:41, 46; Mark 9:43–48; 2 Thessalonians 1:7–9; Revelation 20:10, 14–15; Luke 16:19–31; Jude 7

LESSON

Lesson 21: Remaining Sin — Why Christians Still Struggle

Justified Yet Sinful — Simul Justus et Peccator

Luther’s paradox: simul justus et peccator — the believer is simultaneously righteous (in Christ, by imputation) and sinful (in himself, by remaining corruption)
The biblical testimony: “If we say that we have no sin, we are deceiving ourselves and the truth is not in us” (1 John 1:8) — written to believers, not to the unconverted
Romans 7:14–25: Paul’s agonized description of the inner conflict — “The good that I want, I do not do, but I practice the very evil that I do not want” (7:19)
The nature of remaining sin: the believer’s nature has been renewed, but indwelling corruption has not been eradicated — the war between the new nature and the old flesh continues until glorification
Galatians 5:17 — “The flesh sets its desire against the Spirit, and the Spirit against the flesh; for these are in opposition to one another”
The difference between the believer and the unbeliever: the unbeliever sins freely, without resistance, and under the dominion of sin; the believer sins against his will, with grief, and in a condition where sin’s dominion has been broken (Romans 6:14)
The danger of perfectionism: the claim that the believer can reach a state of sinless perfection in this life is unbiblical and pastorally destructive (1 John 1:8–10)
The pastoral encouragement: the very fact that you grieve over your sin is evidence that the Spirit is at work in you — the unconverted do not mourn their sin; only those who have been born of God are troubled by the sin that remains
Key Texts: Romans 7:14–25; Galatians 5:16–17; 1 John 1:8–10; Philippians 3:12–14; Romans 6:12–14

LESSON

Lesson 22: The Mortification of Sin — The Believer’s Lifelong Battle

Be Killing Sin, or It Will Be Killing You

John Owen’s classic work: The Mortification of Sin (1656) — the most important treatment of indwelling sin ever written by a Protestant theologian
Owen’s foundational principle: “Be killing sin or it will be killing you” — there is no neutral ground in the Christian life; sin that is not actively put to death will actively put you to death
Romans 8:13 — “If by the Spirit you are putting to death the deeds of the body, you will live” — mortification is a present, continuous, Spirit-empowered activity
The means of mortification: (1) recognition — know your sin, its patterns, and its deceitfulness; (2) humiliation — be broken before God over your sin; (3) the gospel — preach the cross to yourself daily; (4) the Spirit — depend on the Spirit’s power, not your own willpower; (5) accountability — confess your sins to trusted brothers and sisters
What mortification is NOT: it is not mere behavior modification; it is not suppression or white-knuckled self-control; it is not asceticism or self-punishment — it is the Spirit-empowered, gospel-motivated, daily warfare against the remaining corruption of the flesh
Colossians 3:5 — “Therefore consider the members of your earthly body as dead to sin: immorality, impurity, passion, evil desire, and greed, which amounts to idolatry”
The progress of sanctification: mortification does not happen overnight — it is a lifelong process of progressively weakening the power of indwelling sin, one battle at a time
The eschatological horizon: the day is coming when mortification will be complete — in glory, there will be no more sin to kill, no more flesh to fight, and no more tears to shed over failure
Key Texts: Romans 8:13; Colossians 3:5–10; Romans 6:11–14; Galatians 5:24; 2 Corinthians 7:1; Hebrews 12:1–2

LESSON

Lesson 23: The Discipline of the Lord — How God Deals with the Sin of His Children

The Loving Correction of a Faithful Father

Hebrews 12:5–11 — the definitive passage on divine discipline: “For those whom the Lord loves He disciplines, and He scourges every son whom He receives” (12:6)
The distinction between divine discipline and divine punishment: punishment is retributive and aimed at justice — Christ bore our punishment on the cross; discipline is corrective and aimed at holiness — the Father disciplines His children for their good
The purpose of discipline: “He disciplines us for our good, so that we may share His holiness” (Hebrews 12:10) — discipline is not evidence of God’s rejection but of His Fatherly love
The forms of discipline: providential suffering, loss, conviction of conscience, the rebuke of fellow believers, church discipline, and the withholding of spiritual comfort — all are means by which God draws His wayward children back to Himself
The Corinthian example: some in Corinth became sick and even died because of their abuse of the Lord’s Supper (1 Corinthians 11:30–32) — “We are disciplined by the Lord so that we will not be condemned along with the world”
The proper response to discipline: not resentment but repentance; not bitterness but gratitude — “All discipline for the moment seems not to be joyful, but sorrowful; yet to those who have been trained by it, afterwards it yields the peaceful fruit of righteousness” (Hebrews 12:11)
The absence of discipline as a warning: “If you are without discipline… then you are illegitimate children and not sons” (Hebrews 12:8) — the absence of God’s corrective hand is not a sign of His approval but of the absence of the filial relationship
The pastoral comfort: if God is disciplining you, it is because you are His child — and He loves you too much to leave you in your sin
Key Texts: Hebrews 12:5–11; 1 Corinthians 11:30–32; Revelation 3:19; Proverbs 3:11–12; Psalm 119:67, 71

LESSON

Lesson 24: Where Sin Increased, Grace Abounded All the More

The Doctrine of Sin as the Dark Canvas on Which the Gospel Shines

The Pauline conclusion: “Where sin increased, grace abounded all the more” (Romans 5:20) — the doctrine of sin is not the final word; it is the penultimate word that makes the final word — grace — unutterably glorious
The gravity of sin: every lesson in this series has demonstrated that sin is deeper than we imagined, more pervasive than we knew, and more deadly than we feared — it has ruined our nature, enslaved our will, corrupted our hearts, broken our world, and earned us nothing but death and judgment
The glory of grace: and yet — “But God, being rich in mercy, because of His great love with which He loved us, even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved)” (Ephesians 2:4–5)
The cross as the meeting place: at the cross, the full gravity of sin and the full glory of grace converge — sin demanded death, and grace provided a substitute; justice demanded payment, and mercy provided a Payer
The double imputation: our sin was imputed to Christ on the cross; His righteousness is imputed to us by faith — this is the gospel, and this is why Hamartiology is not the end of the story but the necessary prelude to Soteriology
The pastoral application: you cannot out-sin the grace of God — but neither should you treat grace as a license to sin (Romans 6:1–2) — the proper response to grace is not presumption but gratitude, not license but love, not complacency but holiness
The forward look: from Hamartiology to Soteriology — from the catastrophe to the rescue, from the disease to the cure, from the depths of human ruin to the heights of divine redemption — “For as in Adam all die, so also in Christ all will be made alive” (1 Corinthians 15:22)
The doxological conclusion: to know the depth of your sin is to know the height of God’s love — and to spend eternity marveling that the God against whom you sinned is the God who saved you, at the cost of His own Son, for the praise of His glorious grace
Key Texts: Romans 5:20; Ephesians 2:4–10; 2 Corinthians 5:21; Romans 8:1; 1 Corinthians 15:22; Romans 6:1–2; Titus 2:11–14

A Word About These Resources

Every resource on this page is offered freely and without charge. This ministry exists not for profit but for the building up of the body of Christ. If these materials have been a blessing to you, we would ask only three things: first, that you share them with others who might benefit; second, that you pray for this ministry, that God would sustain it, correct it where it errs, and use it for the advancement of His kingdom and the glory of His name; third and finally if you gained any benefit from these resources, would you consider donating to the ongoing work of this ministry.

These resources are a work in progress. New series and topics are added regularly as the Lord provides opportunity and the Spirit gives direction. If there is a subject you would like to see addressed, or a book of the Bible you would like studied, please do not hesitate to reach out. This ministry belongs to Christ and exists to serve His people.

DONATE