Exodus 7:1-13

1And the LORD said to Moses, See, I have made thee a god to Pharaoh: and Aaron thy brother shall be thy prophet. 2Thou shalt speak all that I command thee: and Aaron thy brother shall speak to Pharaoh, that he send the children of Israel out of his land. 3And I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt. 4But Pharaoh shall not hearken to you, that I may lay my hand upon Egypt, and bring forth my armies, my people the children of Israel, out of the land of Egypt by great judgments. 5And the Egyptians shall know that I am the LORD, when I stretch forth my hand upon Egypt, and bring out the children of Israel from among them. 6And Moses and Aaron did as the LORD commanded them, so did they. 7And Moses was eighty years old, and Aaron eighty and three years old, when they spoke to Pharaoh.

8And the LORD spoke to Moses and to Aaron, saying, 9When Pharaoh shall speak to you, saying, Show a miracle for you: then thou shalt say to Aaron, Take thy rod, and cast it before Pharaoh, and it shall become a serpent. 10And 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. 11Then Pharaoh also called the wise men and the sorcerers: now the magicians of Egypt, they also did in like manner with their enchantments. 12For they cast down every man his rod, and they became serpents: but Aaron’s rod swallowed up their rods. 13And he hardened Pharaoh’s heart, that he hearkened not to them; as the LORD had said.