2 Chronicles 21:5-9

51Jehoram was thirty-two years old when he became king, and he reigned eight years in Jerusalem. 62He walked in the way of the kings of Israel, just as the house of Ahab did (3for Ahab’s daughter was his wife), and he did evil in the sight of the Lord. 7Yet the Lord was not willing to destroy the house of David because of the covenant which He had made with David, 4and since He had promised to give a lamp to him and his sons forever.

8In his days 5Edom revolted 6against the rule of Judah and set up a king over themselves. 9Then Jehoram crossed over with his commanders and all his chariots with him. And he arose by night and struck down the Edomites who were surrounding him and the commanders of the chariots.