Exodus 7 - 8:19

1 So the Lord said to Moses: “See, I have made you as God to Pharaoh, and Aaron your brother shall be your prophet. 2 You shall speak all that I command you. And Aaron your brother shall tell Pharaoh to 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 will not heed you, so that I may lay My hand on Egypt and bring My 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 out My hand on Egypt and bring out the children of Israel from among them.” . . .
— EXODUS 7 - 8:19