Exodus 4:15

Now therefore go, and I will be with your mouth, and teach you what you shall speak.”

Moses said, “Oh, Lord, please send someone else.”

The LORD’s anger burned against Moses, and he said, “What about Aaron, your brother, the Levite? I know that he can speak well. Also, behold, he is coming out to meet you. When he sees you, he will be glad in his heart.

He will be your spokesman to the people. It will happen that he will be to you a mouth, and you will be to him as God.

You shall take this rod in your hand, with which you shall do the signs.”

Moses went and returned to Jethro his father-in-law, and said to him, “Please let me go and return to my brothers who are in Egypt, and see whether they are still alive.”

Jethro said to Moses, “Go in peace.”