1 Kings 15:7-9

Amplified Bible

⁷ Now as for the rest of the acts of Abijam and everything that he did, are they not written in the Book of the Chronicles of the Kings of Judah? And there was war between Abijam and Jeroboam.

Asa Succeeds Abijam

⁸ Abijam slept with his fathers [in death] and they buried him in the City of David. Asa his son became king in his place.

⁹ So in the twentieth year of Jeroboam king of Israel, Asa began to reign as king over Judah.