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. 18 At that time, I charged you as follows: "Although the Lord your God has given you this land to occupy, all your troops shall cross over armed as the vanguard of your Israelite kin. 19 Only your wives, your children, and your livestock-I know that you have much livestock-shall stay behind in the towns that I have given to you. 20 When the Lord gives rest to your kindred, as to you, and they too have occupied the land that the Lord your God is giving them beyond the Jordan, then each of you may return to the property that I have given to you."
Matthew Henry's Commentary on Deuteronomy 3:12-20
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.