Moses tried relentlessly to excuse himself from going down to Egypt as the Lord commanded, but the Lord answered every excuse. Finally, Moses said,
“O my Lord, please send by the hand of whomever else You may send” (Exodus 4:13).
Moses just did not want to go, and this was his way of trying to be kind about rejecting the Lord’s orders. However, the Lord did something that persuaded Moses to go,
So the anger of the Lord was kindled against Moses, and He said:
“Is not Aaron the Levite your brother? I know that he can speak well. And look, he is also coming out to meet you. When he sees you, he will be glad in his heart. Now you shall speak to him and put the words in his mouth. And I will be with your mouth and with his mouth, and I will teach you what you shall do. So he shall be your spokesman to the people. And he himself shall be as a mouth for you, and you shall be to him as God. And you shall take this rod in your hand, with which you shall do the signs” (Exodus 4:14–17).
Moses saw that he angered the Lord, and Moses could then see that he had to do as commanded. Moreover, the Lord provided for Moses that he would not have to worry about his speaking ability before Pharaoh, because Aaron would function as a spokesman for Moses.