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.
A general idea is given of Jehoram's badness. His father, no doubt, had him taught the true knowledge of the Lord, but did ill to marry him to the daughter of Ahab; no good could come of union with an idolatrous family.
Matthew Henry's Commentary on 2 Kings 8:21
Commentary on 2 Kings 8:16-24
(Read 2 Kings 8:16-24)
A general idea is given of Jehoram's badness. His father, no doubt, had him taught the true knowledge of the Lord, but did ill to marry him to the daughter of Ahab; no good could come of union with an idolatrous family.