2 Kings 8
20 Ref In his time, Edom made themselves free from the rule of Judah, and took a king for themselves.
21 Ref Then Joram went over to Zair, with all his war-carriages; ... made an attack by night on the Edomites, whose forces were all round him, ... the captains of the war-carriages; and the people went in flight to their tents.
22 Ref So Edom made themselves free from the rule of Judah to this day. And at the same time, Libnah made itself free.