So Joram went to Zair, and all his chariots with him. Then he rose by night and attacked the Edomites who had surrounded him and the captains of the chariots; and the troops fled to their tents.
2 Kings 8:21
Surrounding context
8:20 In his days Edom revolted against Judah's authority, and made a king over themselves.
8:21 So Joram went to Zair, and all his chariots with him. Then he rose by night and attacked the Edomites who had surrounded him and the captains of the chariots; and the troops fled to their tents.
8:22 Thus Edom has been in revolt against Judah's authority to this day. And Libnah revolted at that time.