1 Kings 15:1-9 NIV
In the eighteenth year of the reign of Jeroboam son of Nebat, Abijah became king of Judah, and he reigned in Jerusalem three years. His mother’s name was Maakah daughter of Abishalom.
He committed all the sins his father had done before him; his heart was not fully devoted to the LORD his God, as the heart of David his forefather had been. Nevertheless, for David’s sake the LORD his God gave him a lamp in Jerusalem by raising up a son to succeed him and by making Jerusalem strong. For David had done what was right in the eyes of the LORD and had not failed to keep any of the LORD’s commands all the days of his life—except in the case of Uriah the Hittite.
There was war between Abijah and Jeroboam throughout Abijah’s lifetime. As for the other events of Abijah’s reign, and all he did, are they not written in the book of the annals of the kings of Judah? There was war between Abijah and Jeroboam. And Abijah rested with his ancestors and was buried in the City of David. And Asa his son succeeded him as king.
In the twentieth year of Jeroboam king of Israel, Asa became king of Judah
NIV: New International Version