20In the days of Jehoram, Edom rebelled against the hand of Judah and appointed their own king.
21So Jehoram crossed over to Zair with all his chariots. When the Edomites surrounded him and his chariot commanders, he rose up and attacked by night. His troops, however, fled to their homes.
22So to this day Edom has been in rebellion against the hand of Judah. Likewise, Libnah rebelled at the same time.
— 2 Kings 8:20-22