2 Chronicles 10:17

But as for the children of Israel that dwelt in the cities of Judah, Rehoboam reigned over them.

Cross-reference

2 Chronicles 11:1 Historical context

In 2 Chronicles 11:4, God tells Rehoboam not to attack his brethren — the follow-up to the note here that he still reigns over Judah.

1 Kings 11:36 Prophetic fulfillment

In 1 Kings 11:36, God promised to leave David one tribe; here that tribe (Judah) remains loyal to Rehoboam, fulfilling the prophecy.

1 Kings 12:17 is the parallel account, identical wording—Rehoboam still rules Israelites in Judah's towns.

Ezekiel 37:16 refers to the two sticks—Judah and Joseph (Israel)—the very division that began here, used as a symbol for future reunification.

In 2 Samuel 20:2, Judah also stayed loyal to David when Israel rebelled—similar pattern of northern rebellion and southern loyalty.