Exodus 3:1
Meanwhile, Moses was shepherding the flock of his father-in-law Jethro, the priest of Midian. He led the flock to the far side of the wilderness and came to Horeb, the mountain of God.

Exodus 4:18
Then Moses went back to his father-in-law Jethro and said to him, "Please let me return to my brothers in Egypt and see if they are still alive." "Go in peace, " Jethro replied.

Exodus 18:1-12
Now Moses' father-in-law Jethro, the priest of Midian, heard about all that God had done for Moses and His people Israel, and how the LORD had brought Israel out of Egypt. . . .

Jethro.

Numbers 19:20
But if a person who is unclean does not purify himself, he will be cut off from the assembly, because he has defiled the sanctuary of the LORD. The water of purification has not been sprinkled on him; he is unclean.