Exodus 4:18–26
18 Moses went back to wJethro 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 xall the men who were seeking your life are dead.” 20 So Moses took yhis wife and his sons and had them ride on a donkey, and went back to the land of Egypt. And Moses took zthe 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 amiracles that I have put in your power. But bI will harden his heart, so that he will not let the people go. 22 Then you shall say to Pharaoh, ‘Thus says the Lord, cIsrael is my dfirstborn 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 ewill kill your firstborn son.’ ”
24 At a lodging place on the way fthe Lord met him and gsought to put him to death. 25 Then hZipporah took a iflint and cut off her son’s foreskin and touched Moses’3 feet with it and said, “Surely you are a bridegroom of blood to me!” 26 So he let him alone. It was then that she said, “A bridegroom of blood,” because of the circumcision.