10But Moses said to the LORD, “O my Lord, I have never been eloquent, neither in the past nor even now that you have spoken to your servant; but I am slow of speech and slow of tongue.” 11Then the LORD said to him, “Who gives speech to mortals? Who makes them mute or deaf, seeing or blind? Is it not I, the LORD? 12Now go, and I will be with your mouth and teach you what you are to speak.” 13But he said, “O my Lord, please send someone else.” 14Then the anger of the LORD was kindled against Moses and he said, “What of your brother Aaron, the Levite? I know that he can speak fluently; even now he is coming out to meet you, and when he sees you his heart will be glad. 15You shall speak to him and put the words in his mouth; and I will be with your mouth and with his mouth, and will teach you what you shall do. 16He indeed shall speak for you to the people; he shall serve as a mouth for you, and you shall serve as God for him. 17Take in your hand this staff, with which you shall perform the signs.”
18Moses went back to his father-in-law Jethro and said to him, “Please let me go back to my kindred in Egypt and see whether they are still living.” And Jethro said to Moses, “Go in peace.” 19The LORD said to Moses in Midian, “Go back to Egypt; for all those who were seeking your life are dead.” 20So Moses took his wife and his sons, put them on a donkey and went back to the land of Egypt; and Moses carried the staff of God in his hand.
21And the LORD said to Moses, “When you go back to Egypt, see that you perform before Pharaoh all the wonders that I have put in your power; but I will harden his heart, so that he will not let the people go. 22Then you shall say to Pharaoh, ‘Thus says the LORD: Israel is my firstborn son. 23I said to you, “Let my son go that he may worship me.” But you refused to let him go; now I will kill your firstborn son.'”
24On the way, at a place where they spent the night, the LORD met him and tried to kill him. 25But Zipporah took a flint and cut off her son’s foreskin, and touched Moses’ feet with it, and said, “Truly you are a bridegroom of blood to me!” 26So he let him alone. It was then she said, “A bridegroom of blood by circumcision.”
27The LORD said to Aaron, “Go into the wilderness to meet Moses.” So he went; and he met him at the mountain of God and kissed him. 28Moses told Aaron all the words of the LORD with which he had sent him, and all the signs with which he had charged him. 29Then Moses and Aaron went and assembled all the elders of the Israelites. 30Aaron spoke all the words that the LORD had spoken to Moses, and performed the signs in the sight of the people. 31The people believed; and when they heard that the LORD had given heed to the Israelites and that he had seen their misery, they bowed down and worshiped.