As Claedalus says, there's a passage in genesis referred to here, in Genesis 3 specifically. There is also a reference to Matthew 3. Both these chapters mention serpents (the serpent in the garden, Jesus calls the Pharisees vipers). Notice "YOU will bruise my head, I will strike your heel" i.e. the speaker is the serpent.
Genesis 3:15 "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."
Matthew 3:9 "And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham."
As Claedalus says, there's a passage in genesis referred to here, in Genesis 3 specifically. There is also a reference to Matthew 3. Both these chapters mention serpents (the serpent in the garden, Jesus calls the Pharisees vipers). Notice "YOU will bruise my head, I will strike your heel" i.e. the speaker is the serpent.
Genesis 3:15 "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."
Matthew 3:9 "And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham."