Exodus 4:10-14

10And Moses said unto Yhwh, O my Lord, I am not eloquent, neither heretofore, nor since thou hast spoken unto thy servant: but I am slow of speech, and of a slow tongue.12 11And Yhwh said unto him, Who hath made man’s mouth? or who maketh the dumb, or deaf, or the seeing, or the blind? have not I Yhwh? 12Now therefore go, and I will be with thy mouth, and teach thee what thou shalt say. 13And he said, O my Lord, send, I pray thee, by the hand of him whom thou wilt send.3 14And the anger of Yhwh was kindled against Moses, and he said, Is not Aaron the Levite thy brother? I know that he can speak well. And also, behold, he cometh forth to meet thee: and when he seeth thee, he will be glad in his heart.