Exodus 7:1-6 TMB

1 And the LORD said unto Moses, "See, I have made thee a god to Pharaoh, and Aaron thy brother shall be thy prophet.
2 Thou shalt speak all that I command thee; and Aaron thy brother shall speak unto Pharaoh, that he send the children 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 But Pharaoh shall not hearken unto you, that I may lay My hand upon Egypt and bring forth Mine armies and My people, the children 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 Mine hand upon Egypt and bring out the children of Israel from among them."
6 And Moses and Aaron did as the LORD commanded them; so did they.