And in the days of Saul they made war with the Hagarites,.... Not with the Hungarians, as the Targum, a people not then in being; but the Ishmaelites, so called because they descended from Hagar , Sarah's maid; the same that are placed by Pliny and Ptolemy in Arabia, near the Batanaeans, or inhabitants of Bashan; with those the Reubenites made war, in conjunction with the Gadites and half tribe of Manasseh, 1Ch 5:18, perhaps this war might be much about the time Saul relieved Jabeshgilead, and beat the Ammonites, 1Sa 11:1 by which the tribes on that side Jordan might be encouraged to it:who fell by their hand; were worsted and conquered by them:and they dwelt in their tents; in which the Arabians used to dwell, because of their flocks; hence some of them were called Scenites:throughout all the east [land] of Gilead; or rather throughout all the land of the Hagarites, which lay to the east of Gilead, as the Vulgate Latin version; or otherwise the land of Gilead itself was their original possession.
So David de Pomis, Lexic. fol. 45. 4. Nat. Hist. l. 6. c. 28. Geograph. l. 5. c.