3 "But I will make Pharaoh's heart stubborn. I will multiply my miraculous signs and wonders in Egypt.
4 In spite of that, he will not listen to you. So I will use my powerful hand against Egypt. When I judge them with mighty acts, I will bring my people Israel out like an army on the march.
5 "Then the Egyptians will know that I am the Lord. I will reach out my powerful hand against Egypt. I will bring the people of Israel out of it."
6 Moses and Aaron did exactly as the Lord had commanded them.
7 Moses was 80 years old and Aaron was 83 when they spoke to Pharaoh.
8 The Lord spoke to Moses and Aaron.
9 He said, "Pharaoh will say to you, 'Do a miracle.' When he does, speak to Aaron. Tell him, 'Take your wooden staff and throw it down in front of Pharaoh.' It will turn into a snake."