(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:)

So Zadok the priest, and Nathan the prophet, and Benaiah the son of Jehoiada, and the Cherethites, and the Pelethites, went down, and caused Solomon to ride upon king David's mule, and brought him to Gihon.

Nevertheless for David's sake did the LORD his God give him a lamp in Jerusalem, to set up his son after him, and to establish Jerusalem:

However I will not tear away all the kingdom; but will give one tribe to your son for David my servant's sake, and for Jerusalem's sake which I have chosen.