Exodus 6:27-29

American Standard Version

²⁷ These are they that spake to Pharaoh king of Egypt, to bring out the children of Israel from Egypt: these are that Moses and Aaron.

²⁸ And it came to pass on the day when Jehovah spake unto Moses in the land of Egypt, ²⁹ that Jehovah spake unto Moses, saying, I am Jehovah: speak thou unto Pharaoh king of Egypt all that I speak unto thee.