Exodus 6:29

then the Lord spoke to Moses, saying, I am the Lord: speak to Pharao king of Egypt whatsoever I say to thee.

That the Lord spake unto Moses, saying, I am the Lord: speak thou unto Pharaoh king of Egypt all that I say unto thee.

Yahweh said to Moses, “I am Yahweh. Tell Pharaoh king of Egypt all that I tell you.”