Exodus 6:27-29

Darby Translation

²⁷ These are they who spoke to Pharaoh king of Egypt, to bring out the children of Israel from Egypt: this is that Moses and Aaron.

²⁸ And it came to pass on the day when Jehovah spoke to Moses in the land of Egypt,

²⁹ that Jehovah spoke to Moses, saying, I am Jehovah: speak thou unto Pharaoh king of Egypt all that I say unto thee.