Exodus 4:13-15

American Standard Version

¹³ And he said, Oh, Lord, send, I pray thee, by the hand of him whom thou wilt send. ¹⁴ And the anger of Jehovah was kindled against Moses, and he said, Is there not Aaron thy brother the Levite? 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 the words in his mouth: and I will be with thy mouth, and with his mouth, and will teach you what ye shall do.