The LORD said unto Moses, See, I have constituted thee as god unto Pharaoh; and Aaron, thy brother, shall be thy prophet.
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.
And I will harden Pharaoh’s heart and multiply my signs and my wonders in the land of Egypt.
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.
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.
And Moses and Aaron did as the LORD commanded them, so did they.
And Moses was eighty years old and Aaron eighty-three years old when they spoke unto Pharaoh.
And the LORD spoke unto Moses and unto Aaron, saying,
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.
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.