2 Chronicles 21:5-9

5Jehoram was thirty and two years old when he began to reign; and he reigned eight years in Jerusalem.

6And he walked in the way of the kings of Israel, as did the house of Ahab: for he had the daughter of Ahab to wife: and he did that which was evil in the sight of the LORD.

7Howbeit the LORD would not destroy the house of David, because of the covenant that he had made with David, and as he promised to give a lamp to him and to his children alway.

8In his days Edom revolted from under the hand of Judah, and made a king over themselves.

9Then Jehoram passed over with his captains, and all his chariots with him: and he rose up by night, and smote the Edomites which compassed him about, and the captains of the chariots.