Therefore as sin entered into the world through one man, and death through sin; and so death passed to all men, because all sinned.Romans 5:12 · World English Bible
Original Language & Text
The book of Genesis never uses a Hebrew phrase that means 'original sin'; that term was added later by theologians. A key verse is Romans 5:12, where Paul writes that death spread to everyone 'because all sinned.' The Greek wording here is unclear, and while most translators render it as 'because,' the old Latin Bible (the Vulgate) translated it as 'in whom,' giving the reading 'in Adam all sinned.' This was likely a mistranslation, but it strongly shaped how the Western church later understood the doctrine, through the theologian Augustine. Psalm 51:5 says a person was 'brought forth in iniquity,' using the image of birth to describe how sin runs deep in people; scholars debate whether this means people are born already guilty, or simply that everyone ends up sinning over a lifetime. In later Jewish thought, the Hebrew phrase 'yetzer hara,' or 'evil inclination,' describes a built-in human pull toward wrongdoing. It is sometimes compared to the Christian idea of original sin, but it is not quite the same thing.
History & Authorship
The full teaching on original sin was not worked out in detail by the earliest Christians. Church writers in the first couple of centuries, especially in the East, spoke of humans inheriting death and a damaged nature from Adam, but not of inheriting guilt for Adam's specific act. In the 4th and 5th centuries, the bishop Augustine, partly relying on that mistranslated verse in Romans and arguing against a teacher named Pelagius (who denied that people inherit sinfulness and stressed free will instead), worked out the fuller Western teaching: humanity inherits both a corrupted nature and actual guilt from Adam, passed down through having children. Church councils at Carthage (418) and Orange (529) rejected Pelagius's teaching and backed Augustine's view. The Eastern church took a different path, teaching 'ancestral sin,' meaning people inherit death and corruption from Adam but reject the idea that people also inherit his guilt. Centuries later, the Protestant Reformation (through Luther and Calvin) pushed Augustine's ideas further, teaching that human nature is totally corrupted by sin, while the Catholic Council of Trent (1546) restated the Catholic version, which ties this teaching to the practice of infant baptism.
The Popular / Mainstream View
Most Western Christians, both Catholic and Protestant, believe in some form of original sin: people inherit a sinful, damaged nature from Adam's disobedience, leading everyone to sin, and, in the strict Augustinian or Reformed version, people also inherit guilt that only Christ can fix. Catholics connect this teaching to why infants need to be baptized. Reformed Protestants often describe this with the phrase 'total depravity.' The Eastern Orthodox Church agrees that people inherit death, corruption, and a pull toward sin from Adam ('ancestral sin'), but it generally rejects the idea that people also inherit Adam's personal guilt, holding that each person is only guilty for the sins they themselves commit.
Minority & Alternative Views
Pelagianism/Semi-Pelagianism
Pelagius and his followers taught that Adam's sin did not damage human nature or pass guilt down to his descendants. In this view, each person is born morally neutral and only sins by copying Adam's bad example. Church councils at Carthage (418) and Ephesus (431) rejected this teaching. A softer version, sometimes called 'semi-Pelagianism,' taught that people can take the first steps toward God on their own, without God's help, and this softer version survived and still shapes some theology today.
Eastern Orthodox "Ancestral Sin"
The Eastern Orthodox Church teaches that people inherit death, corruption, and a tendency to sin from Adam, but it clearly rejects the Western, Augustinian idea that people also inherit legal guilt; guilt, in this view, only comes from a person's own sins. This leads Orthodox Christians to think differently about the purpose of baptizing infants, and it avoids relying on the mistranslated verse in Romans that shaped Western teaching.
Jewish and liberal Christian rejection
Judaism generally does not teach that people inherit original sin. Instead, it teaches that every person is born with both a good inclination and an evil inclination and is responsible for their own choices. In a similar way, some more liberal Christian theologians read the Genesis 3 story symbolically, describing it as a picture of everyone's tendency to sin rather than as a historical account of one couple whose guilt is literally passed down to all their descendants.
What Scholars Say
Bible scholars point out that Genesis 3 never uses the phrase 'original sin' and does not clearly say that guilt is passed down to later generations. This teaching developed later, mostly through Augustine's reading of Paul's letters, which was partly based on a mistranslated verse. Scholars who study the Bible's history and background tend to read Genesis 2-3 as a story meant to explain why humans die and struggle morally, without trying to settle whether it happened exactly as told. They also note that some Jewish writings from before Jesus's time (such as 4 Ezra) already reflect on how Adam's sin affected the whole world. Christian traditions still disagree sharply over whether this teaching means people literally inherit Adam's guilt, or simply describes the fact that everyone ends up sinning.
Sources & Further Reading
- Augustine, City of God and Anti-Pelagian Writings
- Council of Carthage (418 CE)
- Council of Orange (529 CE)
- Council of Trent, Decree on Original Sin (1546)
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