2 Chronicles 13:1

Now in the eighteenth year of king Jeroboam began Abijah to reign over Judah.

Cross-reference

2 Chronicles 12:16 Historical context

2 Chronicles 12:16 records Abijah's succession after Rehoboam, setting up the timeline for 13:1.

1 Kings 15:1-8 provides a parallel account of Abijam's reign, including his war with Jeroboam.

1 Chronicles 3:10 Historical context

1 Chronicles 3:10 lists Abia (Abijah) in the genealogy, reinforcing his place in the Davidic line.