What does God's mercy look like in the context of Adam's sin?

In the wake of Adam and Eve's sin, rather than obliterating them, God extended mercy by promising redemption through the gospel. In Genesis 3:15, God foretells the coming of a Savior who will ultimately crush the serpent's head, signaling hope as His plan of salvation was put into motion. This contrast highlights God's grace amidst judgment, wherein He offers forgiveness and restoration to those who believe. The gospel is central to the Christian faith, reminding believers that while sin had devastating consequences, God's grace is always more abundant, as seen in John 3:16, promising eternal life to all who believe in Christ.