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What Is Original Sin? The Catholic Teaching on the Fall of Adam

Original sin is the fallen state of human nature every person inherits from Adam — not a sin we personally commit. Here is what the Catholic Church actually teaches.

By 1765 Sanctum Co. · Updated July 7, 2026

Original sin is the fallen condition of human nature that every person inherits from Adam, the first man — not a personal sin that anyone individually commits. When Adam disobeyed God (Genesis 3), he lost the original holiness and justice God had given him, and he could pass on to his descendants only a human nature deprived of that grace (Catechism of the Catholic Church 404). The Catholic Church therefore teaches that original sin is a state we contract, not an act we commit (CCC 405): it wounds human nature — leaving us subject to ignorance, suffering, death, and an inclination to sin called concupiscence — but it does not destroy our goodness or make us personally guilty of Adam's fault. This wound is remedied by Baptism, which erases original sin and restores the life of grace, though the inclination to sin remains and calls each person to lifelong spiritual battle (CCC 405; 1263).

What is original sin? The short Catholic answer

Original sin is the fallen condition of human nature that every human being inherits from Adam, the first man — it is not a sinful act that any individual personally chooses. When our first parents turned away from God, they lost the original holiness and justice He had given them, and they could hand on to their descendants only a human nature stripped of that grace. The Catechism of the Catholic Church is precise here: original sin is called "sin" only analogically — it is a sin contracted, not committed; a state, not an act (CCC 404–405). This is the crucial distinction. A mortal sin is something a person freely and knowingly does; original sin is something a person is born into. Grasping this guards you from two opposite errors: imagining that human nature is now worthless, and imagining that we need no Savior at all. The truth sits between them — we are wounded, but still God's good creation.

The Fall of Adam: where original sin began (Genesis 3)

God created man in His own image and "established him in his friendship" — a friendship man could live only "in free submission to God" (CCC 396). The command not to eat "of the tree of the knowledge of good and evil" was exactly this test of trust: the creature freely recognizing the limits of his creaturely status. Tempted by the devil, "man let his trust in his Creator die in his heart and, abusing his freedom, disobeyed God's command" (CCC 397). In that first sin "man preferred himself to God" (CCC 398). This is the Fall, narrated in Genesis 3. The Church does not require you to read the serpent or a particular fruit literally: the account "uses figurative language, but affirms a primeval event, a deed that took place at the beginning of the history of man" (CCC 390). The imagery may be symbolic; the event is real. Humanity truly turned from God, and that turning marks all human history.

Inherited, not imitated: how Adam's sin reaches us

How can one man's sin touch all of us? Following St. Paul, the Church teaches that "all men are implicated in Adam's sin" (CCC 402), citing Romans 5:12 — "sin came into the world through one man and death through sin, and so death spread to all men." The traditional Douay-Rheims renders it: "by one man sin entered into this world, and by sin death." The key word is inherited, not imitated. With the Council of Trent, the Church holds that "original sin is transmitted with human nature, by propagation, not by imitation" (CCC 419). We are not sinners merely because we copy Adam's bad example; we are born already deprived of the grace he forfeited — like heirs born into a family that has lost its inheritance (CCC 404). This is why the Church has always baptized even infants, "who have not committed personal sin" (CCC 403). As St. Paul writes, "as in Adam all die, so also in Christ all shall be made alive" (1 Corinthians 15:22).

Wounded, not destroyed: what original sin does to human nature

Here the Church draws a careful line that protects both truth and hope. Original sin "is a deprivation of original holiness and justice, but human nature has not been totally corrupted: it is wounded in the natural powers proper to it, subject to ignorance, suffering and the dominion of death, and inclined to sin — an inclination to evil that is called concupiscence" (CCC 405; see also 418). Notice what the Church does not say: it does not say human beings are worthless, or that the image of God in us is erased. We remain genuinely good creatures — really wounded, yet still capable of reason, love, and freedom. The Church also warns that ignoring this wound breeds "serious errors in the areas of education, politics, social action and morals" (CCC 407). A man who does not know he is wounded cannot understand why he keeps falling — or why he needs a Redeemer at all. Honest diagnosis is the beginning of the cure.

The remedy: Baptism and the lifelong spiritual battle

The wound of original sin is real, but it is not the last word. "Born with a fallen human nature and tainted by original sin, children also have need of the new birth in Baptism" (CCC 1250). Baptism erases original sin and turns a man back toward God: "By Baptism all sins are forgiven, original sin and all personal sins, as well as all punishment for sin" (CCC 1263). What remains after Baptism is not fresh guilt but a weakness — the inclination to sin — which, in the Catechism's words, "persist[s] in man and summon[s] him to spiritual battle" (CCC 405). That is the shape of the Christian life: not a single cure but a daily campaign. The sins we personally commit after Baptism are healed not by re-baptism but in the sacrament of Confession, which is why the Church urges even those long away to return to Confession. A steady habit of honest self-knowledge — a regular examination of conscience — keeps the battle winnable.

The reverse side of the Good News: Christ the New Adam

The doctrine of original sin, the Catechism says, is "the 'reverse side' of the Good News that Jesus is the Savior of all men" (CCC 389). You cannot fully grasp why the world needs a Redeemer until you see that it is genuinely fallen. Where Adam disobeyed, Christ — "the New Adam" — became "obedient unto death, even death on a cross," more than making up for Adam's disobedience (CCC 411). This is also why Catholics honor Mary as the New Eve: by a singular grace of God, in view of the merits of her Son, she was "preserved from all stain of original sin" from the first instant of her conception — the dogma of the Immaculate Conception (CCC 411). She did not save herself; she is the first and greatest fruit of Christ's saving work. For why Catholics ask Mary to pray for us, and for fuller replies to hard questions, see our answers to common objections.

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Frequently Asked Questions

Are we personally guilty of Adam's sin?

No. The Catechism is explicit: "original sin does not have the character of a personal fault in any of Adam's descendants" (CCC 405). We inherit a human nature deprived of original holiness — a state we contract, not an act we commit (CCC 404). Each of us is responsible for our own personal sins, never for Adam's choice.

What is the difference between original sin and mortal sin?

Original sin is the fallen state every person is born into; a mortal sin is a grave act a person freely and knowingly chooses (CCC 405). Baptism removes original sin (CCC 1263), while personal mortal sins committed afterward are forgiven through the sacrament of Confession. One is inherited; the other is done.

Was there a literal Adam, Eve, and apple?

The Church affirms a real "primeval event, a deed that took place at the beginning of the history of man," while noting that Genesis 3 "uses figurative language" (CCC 390). Catholics are not required to read the serpent or the fruit literally, but the Fall itself is a real event in human history, not a myth.

How is original sin removed?

By Baptism. "By Baptism all sins are forgiven, original sin and all personal sins, as well as all punishment for sin" (CCC 1263). Baptism restores the life of grace, though the inclination to sin — concupiscence — remains and summons the baptized to lifelong spiritual battle (CCC 405).

What happens to babies who die without Baptism?

The Church does not claim to know, but it does not despair. It entrusts such children "to the mercy of God," and Christ's tenderness toward children allows us "to hope that there is a way of salvation for children who have died without Baptism" (CCC 1261). This is hope, not a definition — which is why the Church still urges infant Baptism (CCC 1250).

Why is Mary free from original sin?

By a unique grace of God, in view of the merits of Christ her Son, Mary was "preserved from all stain of original sin" from the first moment of her conception — the dogma of the Immaculate Conception (CCC 411). She was redeemed by Christ in an even more perfect way; she was not exempted from needing Him.

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Primary Sources

Every doctrinal claim on this page traces to a named primary source — verified against the Catechism (vatican.va), Sacred Scripture, and the Magisterium.

Catechism of the Catholic Church 396 — God made man in His image and established him in His friendship, which man can live only in free submission to God; the tree of the knowledge of good and evil symbolizes the limits the creature must freely recognize.
Catechism of the Catholic Church 397 — Tempted by the devil, man let his trust in his Creator die and, abusing his freedom, disobeyed God's command — this was man's first sin.
Catechism of the Catholic Church 398 — In that first sin man preferred himself to God, choosing himself against the requirements of his creaturely status and against his own good.
Catechism of the Catholic Church 390 — The account of the Fall in Genesis 3 uses figurative language but affirms a primeval event, a deed that took place at the beginning of the history of man.
Catechism of the Catholic Church 402 — All men are implicated in Adam's sin, per St. Paul: sin came into the world through one man and death through sin, and death spread to all men.
Catechism of the Catholic Church 403 — The Church, following St. Paul, has always baptized even infants — who have not committed personal sin — for the remission of sins.
Catechism of the Catholic Church 404 — Adam and Eve, in their fallen state, could transmit only a human nature deprived of original holiness; original sin is contracted, not committed — a state, not an act.
Catechism of the Catholic Church 405 — Original sin does not have the character of a personal fault; it is a deprivation of original holiness and justice, and human nature is wounded but not totally corrupted (subject to ignorance, suffering, death, and concupiscence). Baptism erases original sin, but the weakened, inclined-to-evil consequences persist and summon man to spiritual battle.
Catechism of the Catholic Church 407 — The doctrine of original sin gives lucid discernment of man's situation; ignorance of man's wounded nature gives rise to serious errors in education, politics, social action, and morals.
Catechism of the Catholic Church 418 — As a result of original sin, human nature is weakened in its powers, subject to ignorance, suffering, and the domination of death, and inclined to sin.
Catechism of the Catholic Church 419 — With the Council of Trent, the Church holds that original sin is transmitted with human nature by propagation, not by imitation, and is proper to each person.
Catechism of the Catholic Church 389 — The doctrine of original sin is the 'reverse side' of the Good News that Jesus is the Savior of all men.
Catechism of the Catholic Church 411 — Christ is the New Adam whose obedience makes up for Adam's disobedience; Mary, the New Eve, was preserved from all stain of original sin (the Immaculate Conception).
Catechism of the Catholic Church 1250 — Children are born with a fallen human nature tainted by original sin and need the new birth of Baptism to be freed and brought into the freedom of the children of God.
Catechism of the Catholic Church 1261 — The Church entrusts children who die without Baptism to the mercy of God and allows hope that there is a way of salvation for them, while still urging infant Baptism.
Catechism of the Catholic Church 1263 — By Baptism all sins are forgiven — original sin and all personal sins — as well as all punishment for sin.
Romans 5:12 (Douay-Rheims) — By one man sin entered into this world, and by sin death; and so death passed upon all men, in whom all have sinned.
1 Corinthians 15:21-22 — By a man came death and by a man the resurrection of the dead; as in Adam all die, so also in Christ all shall be made alive.
Genesis 3 (the account of the Fall) — Scripture's narrative of Adam and Eve's disobedience in Eden — the event the Church identifies as the Fall and the origin of original sin.
Council of Trent, Session V (1546), Decree on Original Sin — Original sin, one in origin and transmitted by propagation not imitation, is passed to all Adam's descendants; remedied by the merit of Christ applied in Baptism.

Verified by 1765 Sanctum Co., July 7, 2026. Found an error? [email protected] — errata corrected the day they're found.

Published by 1765 Sanctum Co. — Catholic men's formation. Founded by William Hawn, U.S. Army combat veteran, Catholic convert, 4th-Degree Knight of Columbus. Altar. Arms. Allegiance.

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