Exodus 6:28-7:7
Aaron Will Speak for Moses
28Now it happened on the day when Yahweh spoke to Moses in the land of Egypt, 29that Yahweh spoke to Moses, saying, “aI am Yahweh; bspeak to Pharaoh king of Egypt all that I am speaking to you.” 30But Moses said before Yahweh, “Behold, I am of auncircumcised lips; how then will Pharaoh listen to me?”
7Then Yahweh said to Moses, “aSee, I 1set you as God to Pharaoh, and your brother Aaron shall be your prophet. 2“You shall speak all that I command you, and your brother aAaron shall speak to Pharaoh that he let the sons of Israel go out of his land. 3“But aI will harden Pharaoh’s heart with stiffness that I may bmultiply My signs and My 1wonders in the land of Egypt. 4“But aPharaoh will not listen to you. And I will 1set My hand upon Egypt and bbring out My hosts, My people the sons of Israel, from the land of Egypt by cgreat judgments. 5“aThen the Egyptians shall know that I am Yahweh, when I bstretch out My hand against Egypt and bring out the sons of Israel from their midst.” 6So Moses and Aaron did it; aas Yahweh commanded them, thus they did. 7Now Moses was aeighty years old and Aaron eighty-three years old, when they spoke to Pharaoh.