What does the Bible say about the origin of sin?

According to Romans 5:12, sin entered the world through one man, Adam, and as a consequence, death came through sin, which has passed upon all men. This underscores the doctrine of original sin, which posits that every human being is born with a sinful nature as a result of Adam's disobedience. This tragic event laid the foundation for humanity's need for redemption and salvation, highlighting the influence of Adam's choice on all of his descendants. The pervasive nature of sin is thus tied to our shared human experience, reminding us that we are all inherently in need of God's grace and mercy.