Exodus 7:2-5

2As for you, you shall speak all that I command you, and your brother 1Aaron shall speak to Pharaoh that he let the sons of Israel go out of his land.

3But 2I will harden Pharaoh’s heart, so that I may 3multiply My signs and My wonders in the land of Egypt.

4When 4Pharaoh does not listen to you, I will lay My hand on Egypt and 5bring out My armies, My people the sons of Israel, from the land of Egypt by 6great judgments.

5Then 7the Egyptians shall know that I am the Lord, when I 8extend My hand over Egypt and bring out the sons of Israel from their midst.”