1 Kings 11:32

but he [and his descendants] shall have one tribe (Benjamin was annexed to Judah), for the sake of My servant David and for the sake of Jerusalem, the city which I have chosen out of all the tribes of Israel—

1 Kings 11:13

However, I will not tear away all the kingdom; I will give one tribe (Judah) to your son for the sake of My servant David and for the sake of Jerusalem which I have chosen.”

1 Kings 12:20-21

It came about when all Israel heard that Jeroboam had returned, that they sent word and called him to the assembly and made him king over all Israel. None followed the house of David except the tribe of Judah [including Benjamin].

1 Kings 14:21

Now Rehoboam the son of Solomon reigned in Judah. Rehoboam was forty-one years old when he became king, and he reigned seventeen years in Jerusalem, the city the Lord had chosen from all the tribes of Israel in which to put His Name (Presence). His mother’s name was Naamah the Ammonitess.

Treasury of Scripture Knowledge

Summary

(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:)

He shall

For jerusalem's sake

Bible References

He shall

1 Kings 12:20
It came about when all Israel heard that Jeroboam had returned, that they sent word and called him to the assembly and made him king over all Israel. None followed the house of David except the tribe of Judah [including Benjamin].

For jerusalem's sake

1 Kings 11:13
However, I will not tear away all the kingdom; I will give one tribe (Judah) to your son for the sake of My servant David and for the sake of Jerusalem which I have chosen.”