2Kgs 8:20-22

20In his days Edom revolted against the rule of Judah, and set up a king of their own.21Then Joram crossed over to Zair with all his chariots. He set out by night and attacked the Edomites and their chariot commanders who had surrounded him; but his army fled home.22So Edom has been in revolt against the rule of Judah to this day. Libnah also revolted at the same time.