Matthew Poole and continuators on 1 Kings 11:13

13 Howbeit, I will not rend away all the kingdom: but will give one tribe to thy son, for David my servants sake, and for Jerusalems sake , which I have chosen.

How but one, when he had both Iudah and Benjamin, 2 Chron. 11. 12? Ans. Either Benjamin is swallowed up in Iudah, because it was comparatively very small, and their habitation much intermixed with that of Iudah: or, one, to wit, of that kingdom which he here threatens to rend away from him, i. e. of the Kingdom of Israel; and that was Benjamin: one besides Iudah, which was his own Tribe: or, but one, because Benjamin was not entirely his, but part of it adhered to Ieroboam, as Bethel, 1 King. 12. 29. and Hephron, 2 Chron. 13. 19. both which were Towns of Benjamin, Ios. 18. 22. Or, if God promised to give one, and gave him two, I suppose that was no great injury to him.

Not, surely, for its merits; but because he had chosen it, as it follows, to be the Seat of his Temple and Worship; it being Gods usual method to give to him that hath, and to continue and multiply favours to them whom he hath begun to favour.