Parallel
Exodus 7:2
Brenton's English Septuagint · Berean Standard Bible
And thou shalt say to him all things that I charge thee, and Aaron thy brother shall speak to Pharao, that he should send forth the children of Israel out of his land.
You are to speak all that I command you, and your brother Aaron is to tell Pharaoh to let the Israelites go out of his land.