(The Serpent Seed Doctrine, aka The Two Seedline Doctrine. Genesis 3:15 The First Prophecy.) Cain was a murderer like his father. Adam was not a murderer. Like Father like son. The “apple” doesn’t fall far from the tree. The serpent/tree lied in the Garden. “You shall not surely die,” he said. The father of lies lied in the Garden to the woman and he fathered in the Garden with the woman.