2 Kings 8:24

Then Joram crossed over to Zair, and all his chariots with him; and he rose up by night and struck the Edomites who surrounded him with the captains of the chariots; and the people fled to their tents.

So Edom revolted from under the hand of Judah to this day. Then Libnah revolted at the same time.

The rest of the acts of Joram, and all that he did, aren’t they written in the book of the chronicles of the kings of Judah?

In the twelfth year of Joram the son of Ahab king of Israel, Ahaziah the son of Jehoram king of Judah began to reign.

Ahaziah was twenty-two years old when he began to reign; and he reigned one year in Jerusalem. His mother’s name was Athaliah the daughter of Omri king of Israel.

He walked in the way of Ahab’s house and did that which was evil in the LORD’s sight, as did Ahab’s house, for he was the son-in-law of Ahab’s house.