10. And Moses and Aaron went in to Pharaoh, and they did so as the LORD had commanded: And Aaron cast down his rod before Pharaoh, and before his servants, and it became a serpent.
11. Then Pharaoh also called the wise-men, and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments.
12. For they cast down every man his rod, and they became serpents: but Aaron's rod swallowed up their rods.
13. And he hardened Pharaoh's heart that he hearkened not to them; as the LORD had said.