And the Lord said to Moses and Aaron: 9When Pharao shall say to you, Shew signs; thou shalt say to Aaron: Take thy rod, and cast it down before Pharao, and it shall be turned into a serpent. 10So Moses and Aaron went in unto Pharao, and did as the Lord had commanded. And Aaron took the rod before Pharao and his servants, and it was turned into a serpent. 11And Pharao called the wise men and the magicians; and they also by Egyptian enchantments and certain secrets, did in like manner. 12And they every one cast down their rods, and they were turned into serpents: but Aaron's rod devoured their rods. 13And Pharao's heart was hardened, and he did not hearken to them, as the Lord had commanded.