Exodus 4:13-15

Amplified Bible

¹³ But he said, “Please my Lord, send the message [of rescue to Israel] by [someone else,] whomever else You will [choose].”

Aaron to Speak for Moses

¹⁴ Then the anger of the Lord was kindled and burned against Moses; He said, “Is there not your brother, Aaron the Levite? I know that he speaks fluently. Also, he is coming out to meet you, and when he sees you, he will be overjoyed. ¹⁵ You must speak to him and put the words in his mouth; I, even I, will be with your mouth and with his mouth, and I will teach you what you are to do.