Exodus 18:1-3

Now Jethro (Reuel), 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 Moses’ wife Zipporah, after he had sent her away [from Egypt], along with her two sons, of whom one was named Gershom (stranger), for Moses said, “I have been a stranger in a foreign land.”