Exodus 4:10-14

10But Moses said to Adonai, “Adonai, I am not a man of words—not yesterday, nor the day before, nor since You have spoken to Your servant—because I have a slow mouth and a heavy tongue.”

11So Adonai said to him, “Who made man’s mouth? Or who makes a man mute or deaf, seeing or blind? Is it not I, Adonai?

12Now go! I will be with your mouth and teach you what to say.”

13But he said, “Please, please, send it by another hand.”

14Then the anger of Adonai was kindled against Moses, so He said, “In fact, Aaron the Levite is your brother. I know that he can speak well. Moreover, he is on his way to meet you! When he sees you, he will be glad in his heart.