20 In his days Edom revolted from under the hand of Judah, and made a king over themselves.

Matthew Henry's Commentary on 2 Kings 8:20

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.