Numbers 32:39-40

39And the sons of aMachir the son of Manasseh went to Gilead and captured it, and dispossessed the Amorites who were in it. 40And Moses bgave Gilead to Machir the son of Manasseh, and he settled in it.

Deuteronomy 3:12-17

12“When we took possession of this land at that time, I gave to the Reubenites and the Gadites the territory beginning cat Aroer, which is on the edge of the Valley of the Arnon, and half the hill country of Gilead with dits cities. 13 eThe rest of Gilead, and all Bashan, the kingdom of Og, that is, fall the region of Argob, I gave to the half-tribe of Manasseh. (All that portion of Bashan is called the land of gRephaim. 14 hJair the Manassite took all the region of Argob, that is, Bashan, as far as the border of ithe Geshurites and the Maacathites, and called the villages jafter his own name, Havvoth-jair, as it is to this day.) 15To Machir kI gave Gilead, 16and to the Reubenites land the Gadites I gave the territory from Gilead as far as the Valley of the Arnon, with the middle of the valley as a border, as far over as the river Jabbok, mthe border of the Ammonites; 17the Arabah also, with the Jordan as the border, from nChinnereth as far as othe Sea of the Arabah, pthe Salt Sea, under qthe slopes of Pisgah on the east.

Judges 11:10

10And the elders of Gilead said to Jephthah, r“The Lord will be witness between us, if we do not do as you say.”
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