Exodus 18:1-6

When Jethro, the priest of Midian, Moses' father in law, heard of all that God had done for Moses, and for Israel his people, {and} that the LORD had brought Israel out of Egypt; Then Jethro, Moses' father in law, took Zipporah, Moses' wife, after he had sent her back, And her two sons; of which the name of the one {was} Gershom; for he said, I have been an alien in a strange land: {Gershom: that is A stranger there} And the name of the other {was} Eliezer; for the God of my father, {said he, was} mine help, and delivered me from the sword of Pharaoh: {Eliezer: that is, My God is an help} And Jethro, Moses' father in law, came with his sons and his wife unto Moses into the wilderness, where he encamped at the mount of God: And he said unto Moses, I thy father in law Jethro am come unto thee, and thy wife, and her two sons with her.