2 After Moses had sent away his wife Zipporah, his father-in-law Jethro took her back, 3 along with her two sons. The name of the one was Gershom (for he said, "I have been an alien in a foreign land"), 4 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"). 5 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. 6 He sent word to Moses, "I, your father-in-law Jethro, am coming to you, with your wife and her two sons."
Matthew Henry's Commentary on Exodus 18:2-6
Commentary on Exodus 18:1-6
(Read Exodus 18:1-6)
Jethro came to rejoice with Moses in the happiness of Israel, and to bring his wife and children to him. Moses must have his family with him, that while he ruled the church of God, he might set a good example in family government, 1 Timothy 3:5.