So Moses took his wife and sons, put them on a donkey, and set out for the land of Egypt. And Moses took God's staff in his hand. The Lord instructed Moses, "When you go back to Egypt, make sure you do in front of Pharaoh all the wonders I have put within your power. But I will harden his heart so that he won't let the people go. Then you will say to Pharaoh: This is what the Lord says: Israel is My firstborn son. read more.
I told you: Let My son go so that he may worship Me, but you refused to let him go. Now I will kill your firstborn son!" On the trip, at an overnight campsite, it happened that the Lord confronted him and sought to put him to death. So Zipporah took a flint, cut off her son's foreskin, and threw it at Moses' feet. Then she said, "You are a bridegroom of blood to me!" So He let him alone. At that time she said, "You are a bridegroom of blood," referring to the circumcision.