In the third episode of our series, Prof. David Konstan presents his latest book on The Origin of Sin, comparing ancient Jewish and Christian concepts of sin with Greco-Roman ideas of error (Greek hamartia or Latin peccatum). In conversation with A/Prof. Eva Anagnostou-Laoutides, they compare the story of Prometheus with that of Adam and Eve, and also of Jesus as saviors of mankind, and they look at the conception of original sin, which led to man’s exclusion from the Garden of Eden. They also discuss the concepts of punishment, repentance, and forgiveness, and the role they play in Christian eschatology. Prof. Konstan argues that, in the Hebrew Bible, sin consists in the violation of the Covenant and turning to foreign gods, and so is specific to the Israelites. He examines further how the Gospels transformed this concept, and emphasized rather the lack of faith in Jesus as the Son of God as the basis of the Christian conception of sin.