King James Version
Thou shalt speak all that I command thee: and Aaron thy brother shall speak unto Pharaoh, that he send the children of Israel out of his land.English Standard Version
You shall speak all that I command you, and your brother Aaron shall tell Pharaoh to let the people of Israel go out of his land.New International Version
You are to say everything I command you, and your brother Aaron is to tell Pharaoh to let the Israelites go out of his country.