The Lord answered Moses: See! I have made you a god to Pharaoh, and Aaron your brother will be your prophet.

You will speak all that I command you. In turn, your brother Aaron will tell Pharaoh to let the Israelites go out of his land.

Yet I will make Pharaoh so headstrong that, despite the many signs and wonders that I work in the land of Egypt, Pharaoh will not listen to you. Therefore I will lay my hand on Egypt and with mighty acts of judgment I will bring my armies, my people the Israelites, out of the land of Egypt.

All Egyptians will know that I am the Lord, when I stretch out my hand against Egypt and bring the Israelites out of their midst.

This, then, is what Moses and Aaron did. They did exactly as the Lord had commanded them.

Moses was eighty years old, and Aaron eighty-three, when they spoke to Pharaoh.