1 Kings 11:13

One tribe. Besides that of Juda, his own native tribe. (Challoner) --- That of Benjamin had been so reduced, that it scarcely deserved the name of a tribe. It was also invariably connected with the adjoining tribe of Juda; as many of the other tribes, after the captivities of Assyria and Babylon, went by the common title of Jews. (Tirinus) --- The Levites, and many of the Israelites, came to inhabit in the land of Juda, for the sake of the true religion, chap. xii. 17., and 2 Paralipomenon xi. 13, 16. Jeroboam banished the tribe of Levi from his dominions, that he might more easily introduce a change of religion among his subjects. The two kingdoms were thus almost equal in strength. (Calmet) --- Chosen for the abode of holiness, and the seat of government. (Salien) --- One tribe....and Jerusalem; which latter may denote the tribe of Benjamin. (Worthington)