2 Kings 8:20-22

In his days Edom revolted from under the hand of Judah, and made a king over themselves. So Joram went over to Zair, and all the chariots with him: and he rose by night, and smote the Edomites which compassed him about, and the captains of the chariots: and the people fled into their tents. Yet Edom revolted from under the hand of Judah unto this day. Then Libnah revolted at the same time.