Exodus 7:1-3

New Revised Standard Version, Anglicised

7 The Lord said to Moses, ‘See, I have made you like God to Pharaoh, and your brother Aaron shall be your prophet. ² You shall speak all that I command you, and your brother Aaron shall tell Pharaoh to let the Israelites go out of his land. ³ But I will harden Pharaoh’s heart, and I will multiply my signs and wonders in the land of Egypt.