Exodus 4:14-16 Ex. 4:14-16
14 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. 15 And thou shalt speak unto him, and put words in his mouth: and I will be with thy mouth, and with his mouth, and will teach you what ye shall do. 16 And he shall be thy spokesman unto the people: and he shall be, even he shall be to thee instead of a mouth, and thou shalt be to him instead of God.
Joshua 24:5 Josh. 24:5
I sent Moses also and Aaron, and I plagued Egypt, according to that which I did among them: and afterward I brought you out.
(Relation)