Bible dictionaries
Hobab
What Bible dictionaries say about “Hobab”, one article after the other.
Easton’s Bible Dictionary & Webster’s 1828 Dictionary
Hobab - (Easton's Bible Dictionary)
Beloved, the Kenite, has been usually identified with Jethro (q.v.), Ex. 18:5, 27; comp. Num. 10:29, 30. In Judg. 4:11, the word rendered "father-in-law" means properly any male relative by marriage (comp. Gen. 19:14, "son-in-law," A.V.), and should be rendered "brother-in-law," as in the R.V. His descendants followed Israel to Canaan (Num. 10:29), and at first pitched their tents near Jericho, but afterwards settled in the south in the borders of Arad (Judg. 1:8-11, 16).
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
The article in Easton + Webster 1828International Standard Bible Encyclopedia (ISBE 1915)
ho'-bab (chobhabh, "beloved"; Septuagint Obab): This name occurs only twice (Nu 10:29; Jud 4:11). It is not certain whether it denotes the father-in-law or the brother-in-law of Moses. The direct statement of Nu 10:29 is that Hobab was "the son of Reuel" (the King James Version "Raguel"). This is probably the correct view and finds support in Ex 18:27, which tells us that some time before the departure of the Israelites from Sinai, Jethro had departed and returned to his own land. The statement of Jud 4:11 is ambiguous, and therefore does not help us out of the difficulty, but is rather itself to be interpreted in the light of the earlier statement in Nu 10:29.
Mohammedan traditions favor the view that Hobab was only another name for Jethro. But this has little weight against the statements of Scripture. However, whether father-in-law or brother-in-law to Moses, the service he rendered to the leader of the hosts of Israel was most valuable and beautiful. Hobab was an experienced sheikh of the desert whose counsel and companionship Moses desired in the unfamiliar regions through which he was to journey. His knowledge of the wilderness and of its possible dangers would enable him to be to the Israelites "instead of eyes."
The facts recorded of this man are too meager to enable us to answer all the questions that arise concerning him. A difficulty that remains unsolved is the fact that in Jud 1:16 and 4:11 he is described as a Kenite, while in Ex 3:1 and 18:1, the father-in-law of Moses is spoken of as "the priest of Midian."
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith