12 'And this land we have possessed, at that time; from Aroer, which 'is' by the brook Arnon, and the half of mount Gilead, and its cities, I have given to the Reubenite, and to the Gadite; 13 and the rest of Gilead and all Bashan, the kingdom of Og, I have given to the half tribe of Manasseh; all the region of Argob, to all that Bashan, called the land of Rephaim. 14 'Jair son of Manasseh hath taken all the region of Argob, unto the border of Geshuri, and Maachathi, and calleth them by his own name, Bashan-Havoth-Jair, unto this day. 15 And to Machir I have given Gilead. 16 'And to the Reubenite and to the Gadite I have given from Gilead even unto the brook Arnon, the middle of the valley and the border, even unto Jabbok the brook, the border of the sons of Ammon, 17 and the plain, and the Jordan, and the border, from Chinnereth even unto the sea of the plain, the salt sea, under the springs of Pisgah, at the 'sun'-rising. 18 'And I command you, at that time, saying, Jehovah your God hath given to you this land to possess it; armed ye pass over before your brethren the sons of Israel, all the sons of might. 19 Only, your wives, and your infants, and your cattle—I have known that ye have much cattle—do dwell in your cities which I have given to you, 20 till that Jehovah give rest to your brethren like yourselves, and they also have possessed the land which Jehovah your God is giving to them beyond the Jordan, then ye have turned back each to his possession, which 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.