“Then the anger of the LORD burned against Moses, and He said, ‘Is there not your brother Aaron the Levite? I know that he speaks fluently. And moreover, behold, he is coming out to meet you; when he sees you, he will be glad in his heart. You are to speak to him and put the words in his mouth; and I, even I, will be with your mouth and his mouth, and I will teach you what you are to do. Moreover, he shall speak for you to the people; and he will be as a mouth for you and you will be as God to him. You shall take in your hand this staff, with which you shall perform the signs’” (Exodus 4:14-17, NASU).
“Then the LORD said to Moses, ‘See, I make you as God to Pharaoh, and your brother Aaron shall be your prophet. You shall speak all that I command you, and your brother Aaron shall speak to Pharaoh that he let the sons of Israel go out of his land. But I will harden Pharaoh’s heart that I may multiply My signs and My wonders in the land of Egypt. When Pharaoh does not listen to you, then I will lay My hand on Egypt and bring out My hosts, My people the sons of Israel, from the land of Egypt by great judgments. The Egyptians shall know that I am the LORD, when I stretch out My hand on Egypt and bring out the sons of Israel from their midst’” (Exodus 7:1-5, NASU).