20 So Moses took his wife and his sons and put them on a donkey. Then he started back to Egypt. He took with him the walking stick of God.
21 The Lord said to Moses, “When you get back to Egypt, do all the miracles. I have given you the power to do them. Show them to the king of Egypt. But I will make the king very stubborn. He will not let the people go.
22 Then say to the king: ‘This is what the Lord says: Israel is my firstborn son.
23 And I told you to let my son go. Let him go so he may worship me. But you refused to let Israel go. So I will kill your firstborn son.’”
24 As Moses was on his way to Egypt, he stopped at a resting place for the night. The Lord met him there and tried to kill him.
25 But Zipporah took a flint knife and circumcised her son. She took the skin and touched Moses’ feet with it. Then she said to him, “You are a bridegroom of blood to me.”
26 Zipporah said this because she had to circumcise her son. So the Lord did not kill Moses.