Most people consider Genesis 3:15 to be the first tentative mention of the gospel or the protevangelium. God speaks a word of promise to Adam and Eve in the middle of the curse placed on the serpent, “And I will put enmity between you and the woman, and between your seed and her seed; He shall bruise you on the head, and you shall bruise him on the heel.” This is the first inkling that God would provide some form of redemption and it brought hope and a confident expectation to Adam. Genesis 4 reveals that this couple immediately begins to look for the fulfillment of the promise in their first child, Cain, then Abel and finally Seth. Yet each of their sons failed to fulfill what God had promised and so they and their descendents continued to look for God’s promise.
It was only with the coming of the Promised One, Jesus, that Genesis 3:15 really makes sense. First the virgin conception of Christ directly corresponds to the promise that redemption would come from the seed of a woman and not that of the man (Gal 4:4). Additionally, the wound that the Messiah would receive was not to be permanent. Indeed, the best that Satan could do was to bruise the heel of seed of the woman. Yet, the cross was sounding the enemies death-knell and a crushing blow was dealt. The resurrection is our reminder that the final enemy, death has been defeated (1 Cor 15:54-57). So, while today Christ’s final victory over Satan is yet to be seen, the cross and the empty tomb are the insurance that it will occur. As His followers, we serve a victorious King and face a defeated foe whose time and power are limited.