Jethro, the priest of Midian, Moses' father-in-law, heard of all that God had done for Moses and for his people Israel, how the Lord had brought Israel out of Egypt.
After Moses had sent away his wife Zipporah, his father-in-law Jethro took her back,
along with her two sons. The name of the one was Gershom (for he said, "I have been an alien in a foreign land"),
References for Exodus 18:3
and the name of the other, Eliezer (for he said, "The God of my father was my help, and delivered me from the sword of Pharaoh").
References for Exodus 18:4
Jethro, Moses' father-in-law, came into the wilderness where Moses was encamped at the mountain of God, bringing Moses' sons and wife to him.
He sent word to Moses, "I, your father-in-law Jethro, am coming to you, with your wife and her two sons."