Jethro, the priest of Midian, is Moses’s father-in-law. (In his first appearance in Exodus, he is called Reuel.) After Moses sets out for Canaan, he sends his wife Zipporah and his sons Gershom and Eliezer to live with Jethro. When Jethro visits Moses in the wilderness, he encourages Moses to set up a system of judges to oversee disputes among the people.