Reuben, Gad, and Half of Manasseh Settle East of the Jordan

12 As for the land that we took possession of at that time, I gave to the Reubenites and Gadites the territory north of Aroer, that is on the edge of the Wadi Arnon, as well as half the hill country of Gilead with its towns, 13 and I gave to the half-tribe of Manasseh the rest of Gilead and all of Bashan, Og's kingdom. (The whole region of Argob: all that portion of Bashan used to be called a land of Rephaim; 14 Jair the Manassite acquired the whole region of Argob as far as the border of the Geshurites and the Maacathites, and he named them-that is, Bashan-after himself, Havvoth-jair, as it is to this day.) 15 To Machir I gave Gilead. 16 And to the Reubenites and the Gadites I gave the territory from Gilead as far as the Wadi Arnon, with the middle of the wadi as a boundary, and up to the Jabbok, the wadi being boundary of the Ammonites; 17 the Arabah also, with the Jordan and its banks, from Chinnereth down to the sea of the Arabah, the Dead Sea, with the lower slopes of Pisgah on the east.

Matthew Henry's Commentary on Deuteronomy 3:12-17

Commentary on Deuteronomy 3:12-20

(Read Deuteronomy 3:12-20)

This country was settled on the Reubenites, Gadites, and half the tribe of Manasseh: see Numbers 32. Moses repeats the condition of the grant to which they agreed. When at rest, we should desire to see our brethren at rest too, and should be ready to do what we can towards it; for we are not born for ourselves, but are members one of another.