30 But if they don't cross over with you, they'll have to settle up with you in Canaan." 31 The families of Gad and Reuben responded: "We will do what God has said. 32 We will cross the Jordan before God, ready and willing to fight. But the land we inherit will be here, to the east of the Jordan." 33 Moses gave the families of Gad, Reuben, and the half-tribe of Manasseh son of Joseph the kingdom of Sihon, king of the Amorites, and the kingdom of Og, king of Bashan - the land, its towns, and all the territories connected with them - the works. 34 The Gadites rebuilt Dibon, Ataroth, Aroer, 35 Atroth Shophan, Jazer, Jogbehah, 36 Beth Nimrah, and Beth Haran as fortified cities; they also built corrals for their animals. 37 The Reubenites rebuilt Heshbon, Elealeh, and Kiriathaim, 38 also Nebo and Baal Meon and Sibmah. They renamed the cities that they rebuilt. 39 The family of Makir son of Manasseh went to Gilead, captured it, and drove out the Amorites who lived there. 40 Moses then gave Gilead to the Makirites, the descendants of Manasseh. They moved in and settled there. 41 Jair, another son of Manasseh, captured some villages and named them Havvoth Jair (Jair's Tent-Camps). 42 Nobah captured Kenath and its surrounding camps. He renamed it after himself, Nobah.
Matthew Henry's Commentary on Numbers 32:30-50
Commentary on Numbers 32:28-42
(Read Numbers 32:28-42)
Concerning the settlement of these tribes, observe, that they built the cities, that is, repaired them. They changed the names of them; probably they were idolatrous, therefore they should be forgotten. A spirit of selfishness, of seeking our own, not the things of Christ, when each one ought to assist others, is as dangerous as it is common. It is impossible to be sincere in the faith, sensible of the goodness of God, constrained by the love of Christ, sanctified by the power of the Holy Ghost, and yet be indifferent to the progress of religion, and the spiritual success of others, through love of ease, or fear of conflict. Let then your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.