The names of Moses' father-in-law
Whether Reuel, Jethro, and Hobab name one man or more, and how the notices relate.
Exodus 18:1-27
1Now Jethro, the priest of Midian, Moses’ father-in-law, heard of all that God had done for Moses, and for Israel his people, how Yahweh had brought Israel out of Egypt.
2Jethro, Moses’ father-in-law, received Zipporah, Moses’ wife, after he had sent her away,
3and her two sons. The name of one son was Gershom, for Moses said, “I have lived as a foreigner in a foreign land”.
4The name of the other was Eliezer, for he said, “My father’s God was my help and delivered me from Pharaoh’s sword.”
5Jethro, Moses’ father-in-law, came with Moses’ sons and his wife to Moses into the wilderness where he was encamped, at the Mountain of God.
6He said to Moses, “I, your father-in-law Jethro, have come to you with your wife, and her two sons with her.”
7Moses went out to meet his father-in-law, and bowed and kissed him. They asked each other of their welfare, and they came into the tent.
8Moses told his father-in-law all that Yahweh had done to Pharaoh and to the Egyptians for Israel’s sake, all the hardships that had come on them on the way, and how Yahweh delivered them.
9Jethro rejoiced for all the goodness which Yahweh had done to Israel, in that he had delivered them out of the hand of the Egyptians.
10Jethro said, “Blessed be Yahweh, who has delivered you out of the hand of the Egyptians, and out of the hand of Pharaoh; who has delivered the people from under the hand of the Egyptians.
11Now I know that Yahweh is greater than all gods because of the way that they treated people arrogantly.”
12Jethro, Moses’ father-in-law, took a burnt offering and sacrifices for God. Aaron came with all the elders of Israel, to eat bread with Moses’ father-in-law before God.
13On the next day, Moses sat to judge the people, and the people stood around Moses from the morning to the evening.
14When Moses’ father-in-law saw all that he did to the people, he said, “What is this thing that you do for the people? Why do you sit alone, and all the people stand around you from morning to evening?”
15Moses said to his father-in-law, “Because the people come to me to inquire of God.
16When they have a matter, they come to me, and I judge between a man and his neighbor, and I make them know the statutes of God, and his laws.”
17Moses’ father-in-law said to him, “The thing that you do is not good.
18You will surely wear away, both you, and this people that is with you; for the thing is too heavy for you. You are not able to perform it yourself alone.
19Listen now to my voice. I will give you counsel, and God be with you. You represent the people before God, and bring the causes to God.
20You shall teach them the statutes and the laws, and shall show them the way in which they must walk, and the work that they must do.
21Moreover you shall provide out of all the people able men which fear God: men of truth, hating unjust gain; and place such over them, to be rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.
22Let them judge the people at all times. It shall be that every great matter they shall bring to you, but every small matter they shall judge themselves. So shall it be easier for you, and they shall share the load with you.
23If you will do this thing, and God commands you so, then you will be able to endure, and all these people also will go to their place in peace.”
24So Moses listened to the voice of his father-in-law, and did all that he had said.
25Moses chose able men out of all Israel, and made them heads over the people, rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.
26They judged the people at all times. They brought the hard cases to Moses, but every small matter they judged themselves.
27Moses let his father-in-law depart, and he went his way into his own land.
Exodus 2:18
18When they came to Reuel, their father, he said, “How is it that you have returned so early today?”
What each tradition says
Rabbinic / Midrashic
Rashi says Jethro was called by seven names. They are Reuel, Jether, Jethro, Hobab, Heber, Keni, and Putiel.
Rashi (R. Solomon ben Isaac), Rashi on Exodus 18:1 — Rosenbaum & Silbermann trans. (1929-1934), served by Sefaria — Commentary on Exodus 18:1
Rabbinic / Midrashic
According to the Jewish Encyclopedia, the Talmudists were puzzled by Jethro's different names. Some held that his real name was Hobab and Reuel was his father; others held that his name was Reuel, interpreting it as "the friend of God."
Emil G. Hirsch, M. Seligsohn, Solomon Schechter, The Jewish Encyclopedia (1905), art. “Jethro” — His Names (In Rabbinical Literature)
Patristic
No sourced position found. Checked ANF/NPNF full texts on archive.org (Chrysostom, Homilies on Acts, NPNF 1/11 — Jethro appears once, as an example of hospitality; Ante-Nicene Fathers vol. 3), Augustine’s Harmony of the Gospels and the New Advent Fathers index: no patristic treatment of the Reuel/Jethro/Hobab names found.
Catholic
Haydock’s commentary says Raguel had two names, being also called Jethro. It adds that he is also called Hobab and Ceni, citing Numbers and Judges. It notes Drusius’s suggestion that perhaps Raguel was the father of Jethro.
George Leo Haydock, George Haydock's Catholic Bible Commentary (1859) — On Exodus 2:18
Orthodox
No sourced position found. Checked archive.org for a public-domain English Theophylact or Euthymius Zigabenus commentary (none); Philaret’s Longer Catechism and the Acts of the Synod of Jerusalem (dogmatic, no passage commentary); pravoslavieto.com (no English commentary on Exodus 18). No Eastern treatment of the names found.
Reformed / Protestant
Calvin suggests it is probable that Hobab was Moses’ brother-in-law, that is, the brother of Moses’ wife. From this Calvin concludes that Jethro, as is not unusual, had two names.
John Calvin, Commentaries on the Four Last Books of Moses, arranged in the form of a Harmony, Vol. 1 (Calvin Translation Society) — On Exodus 2:18
Evangelical
Wesley notes that Raguel is also called Reuel and seems to be the same person as Jethro, since Scripture often gives one person two or three names. Therefore Hobab is not Jethro but Jethro's son.
John Wesley, Explanatory Notes upon the Old Testament — Note on Numbers 10:29