1 The LORD said unto Moses, See, I have constituted thee as god unto Pharaoh; and Aaron, thy brother, shall be thy prophet. 2 Thou shalt speak all that I shall command thee; and Aaron, thy brother, shall speak unto Pharaoh that he send the sons of Israel out of his land. 3 And I will harden Pharaoh’s heart and multiply my signs and my wonders in the land of Egypt. 4 And Pharaoh shall not hearken unto you, but I shall lay my hand upon Egypt and bring forth my hosts, and my people, the sons of Israel, out of the land of Egypt by great judgments. 5 And the Egyptians shall know that I am the LORD when I stretch forth my hand upon Egypt and bring out the sons of Israel from among them. 6 And Moses and Aaron did as the LORD commanded them, so did they. 7 And Moses was eighty years old and Aaron eighty-three years old when they spoke unto Pharaoh.
8 And the LORD spoke unto Moses and unto Aaron, saying, 9 If Pharaoh shall answer you, saying, Show a miracle, then thou shalt say unto Aaron, Take thy rod and cast it before Pharaoh, that it shall become a dragon. 10 So Moses and Aaron went in unto Pharaoh, and they did as the LORD had commanded; and Aaron cast down his rod before Pharaoh and before his slaves, and it became a dragon. 11 Then Pharaoh also called wise men and sorcerers; now the magicians of Egypt, they also did in like manner with their fire worship. 12 For each one cast down his rod, and they became dragons; but Aaron’s rod swallowed up their rods. 13 And Pharaoh’s heart became hard, that he hearkened not unto them as the LORD had said.