Exodus 4
12 Ref Now therefore go, and I will be with thy mouth, and teach thee what thou shalt say.
13 Ref And he said, O my LORD, send, I pray thee, by the hand of him whom thou wilt send.
14 Ref And the anger of the LORD 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.