21-23 God said to Moses, “When you get back to Egypt, be prepared: All the wonders that I will do through you, you’ll do before Pharaoh. But I will make him stubborn so that he will refuse to let the people go. Then you are to tell Pharaoh, ‘God’s Message: Israel is my son, my firstborn! I told you, “Free my son so that he can serve me.” But you refused to free him. So now I’m going to kill your son, your firstborn.’”
24-26 On the journey back, as they camped for the night, God met Moses and would have killed him but Zipporah took a flint knife and cut off her son’s foreskin, and touched Moses’ member with it. She said, “Oh! You’re a bridegroom of blood to me!” Then God let him go. She used the phrase “bridegroom of blood” because of the circumcision.
27-28 God spoke to Aaron, “Go and meet Moses in the wilderness.” He went and met him at the mountain of God and kissed him. Moses told Aaron the message that God had sent him to speak and the wonders he had commanded him to do.
29-31 So Moses and Aaron proceeded to round up all the leaders of Israel. Aaron told them everything that God had told Moses and demonstrated the wonders before the people. And the people trusted and listened believingly that God was concerned with what was going on with the Israelites and knew all about their affliction. They bowed low and they worshiped.