16 In the fifth year of Joram the son of Ahab, king of Israel, Jeho'ram the son of Jehosh'aphat, king of Judah, began to reign. 17 He was thirty-two years old when he became king, and he reigned eight years in Jerusalem. 18 And he walked in the way of the kings of Israel, as the house of Ahab had done, for the daughter of Ahab was his wife. And he did what was evil in the sight of the Lord. 19 Yet the Lord would not destroy Judah, for the sake of David his servant, since he promised to give a lamp to him and to his sons for ever. 20 In his days Edom revolted from the rule of Judah, and set up a king of their own. 21 Then Joram passed over to Za'ir with all his chariots, and rose by night, and he and his chariot commanders smote the E'domites who had surrounded him; but his army fled home. 22 So Edom revolted from the rule of Judah to this day. Then Libnah revolted at the same time. 23 Now the rest of the acts of Joram, and all that he did, are they not written in the Book of the Chronicles of the Kings of Judah?
Matthew Henry's Commentary on 2 Kings 8:16-23
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.