In the creation myth of Christianity, the main antagonist is often identified as Satan or the Devil, a being who embodies rebellion against God. Initially an angel, Satan's pride led to his downfall, resulting in his role as the tempter who introduces sin into the world. This myth highlights the conflict between divine order and chaos, framing Satan as an adversary who opposes God's will. Through narratives like the temptation of Eve, his character illustrates the complexities of free will and moral choices faced by humanity.