 In the view of many Christians, the Devil's first appearance in the Old Testament is as the serpent in the Garden of Eden.The serpent tempts Adam and Eve into eating the fruit of the tree of the knowledge of good and evil, which God had forbidden them to eat, thus causing their expulsion from the Garden and indirectly causing sin to enter the world.In God's rebuke to the serpent, he tells it "And I will put enmity between thee and the woman and between thy seed and her seed; it shall bruise thy head and thou shalt bruise his heel."