Jair (Gilead) and surrounding region
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Their border was from Mahanaim, all Bashan, all the kingdom of Og king of Bashan, and all the towns of Jair, which are in Bashan, sixty cities.
(1) Jair (ya'ir, "he enlightens" or "one giving light"):
(a) Son, i.e. descendant of Manasseh (Numbers 32:41 Deuteronomy 3:14 Joshua 13:30 1 Kings 4:13 1 Chronicles 2:22 f). According to 1 Chronicles 2:21 he was the son of ScRub, son of Hezron, a descendant of Judah, who married the daughter of Machir, son of Manasseh. He was thus descended both from Judah and Manasseh. At the time of the conquest he distinguished himself by taking the tent-villages HAVVOTH-JAIR (which see). The accounts of his exploit are difficult to harmonize (see ICC on above passages). Some would identify him with the Jair of Judges 10:3, holding that Manasseh's settlement in Northern Gilead and Bashan took place, not before Israel's passage of the Jordan, but after the settlement of the tribe on the West. For a criticism of this view see HGHL, 577, note
(b) One of the judges. He is said to have had 30 sons, who rode on 30 ass colts, and who had as many cities, known as Havvoth-jair (Judges 10:3, 4). One tradition identifies (a) and (b). Others reconcile the two narratives by interpreting the word "son" in a non-literal sense.
(c) The father of Mordecai (Esther 2:5). In the Apocrypha (Additions to Esther 11:2) his name is given as "Jairus" (Iaeiros).
(2) Jair (Qere: ya`ir, "he arouses"; Kethibh: ya`ur; a different name from (1) above): The father of Elhanan, the giant-slayer (1 Chronicles 20:5). In the parallel passage (2 Samuel 21:19) his name is given as "Jaare-oregim," but the text should be corrected to Jair, "oregim" ('oreghim) having crept in from the line below through a copyist's error.