Then the LORD said to Moses, "I have made you like God to Pharaoh. And your brother Aaron will be like a prophet to you.
You must say everything I command you to say. Then your brother Aaron must tell Pharaoh to let the people of Israel leave his country.
"But I will make Pharaoh's heart stubborn. I will multiply my miraculous signs and wonders in Egypt.
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.
"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."
Moses and Aaron did exactly as the LORD had commanded them.