'Reign Over Judah' in the Bible

Now, in the eighteenth year of King Jeroboam son of Nebat, began Abijah to reign over Judah.

Now, Jehoshaphat son of Asa, began to reign over Judah, - in the fourth year of Ahab, king of Israel.

Now it was, in the eleventh year of Joram son of Ahab, that Ahaziah began to reign over Judah.

In the eighteenth year of King Jeroboam, began Abijah to reign over Judah: