9. If they will not believe even these two signs or listen to your voice, you shall take some water from the Nile and pour it on the dry ground, and the water that you shall take from the Nile will become blood on the dry ground.”
10. But Moses said to the Lord, “Oh, my Lord, I am not eloquent, either in the past or since you have spoken to your servant, but I am slow of speech and of tongue.”
11. Then the Lord said to him, “Who has made man’s mouth? Who makes him mute, or deaf, or seeing, or blind? Is it not I, the Lord?
12. Now therefore go, and I will be with your mouth and teach you what you shall speak.”
13. But he said, “Oh, my Lord, please send someone else.”
14. Then the anger of the Lord was kindled against Moses and he said, “Is there not Aaron, your brother, the Levite? I know that he can speak well. Behold, he is coming out to meet you, and when he sees you, he will be glad in his heart.
15. You 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 both what to do.
16. He shall speak for you to the people, and he shall be your mouth, and you shall be as God to him.
17. And take in your hand this staff, with which you shall do the signs.”
18. Moses went back to Jethro his father-in-law and said to him, “Please let me go back to my brothers in Egypt to see whether they are still alive.” And Jethro said to Moses, “Go in peace.”
19. And the Lord said to Moses in Midian, “Go back to Egypt, for all the men who were seeking your life are dead.”
20. So Moses took his wife and his sons and had them ride on a donkey, and went back to the land of Egypt. And Moses took the staff of God in his hand.
21. And the Lord said to Moses, “When you go back to Egypt, see that you do before Pharaoh all the miracles that I have put in your power. But I will harden his heart, so that he will not let the people go.
22. Then you shall say to Pharaoh, ‘Thus says the Lord, Israel is my firstborn son,
23. and I say to you, “Let my son go that he may serve me.” If you refuse to let him go, behold, I will kill your firstborn son.’”