1 Kings 11:32
(But he shall have one tribe for my servant David’s sake, and for Jerusalem’s sake, the city which I have chosen out of all the tribes of Israel:)
Cross-reference
1 Kings 12:20 records that only Judah followed David's house, directly fulfilling the prophecy that one tribe remains.
In 1 Kings 12:27, Jeroboam fears northern tribes returning to Rehoboam because Jerusalem is the lone tribe's worship center — a direct consequence of the division.
In 1 Kings 15:4, God gives Judah a lamp for David's sake — a fulfillment of the promise to leave one tribe for David and Jerusalem.
In 2 Kings 17:18, only the tribe of Judah remains after Israel's exile — the final outcome of sparing one tribe for David's sake.
Psalm 89:33 affirms God's faithfulness not to remove His love from David — echoing the mercy shown by sparing one tribe despite judgment.
Isaiah 7:2 describes the northern alliance threatening Judah — a later conflict resulting from the divided kingdom with only one tribe left.