2 Chronicles 21:5-9

5Jehoram was thirty-two years old when he became king, and he reigned in Jerusalem eight years.

6And Jehoram walked in the ways of the kings of Israel, just as the house of Ahab had done. For he married a daughter of Ahab and did evil in the sight of the LORD. 7Yet the LORD was unwilling to destroy the house of David, because of the covenant He had made with David, and since He had promised to maintain a lamp for David and his descendants forever.

8In the days of Jehoram, Edom rebelled against the hand of Judah and appointed their own king. 9So Jehoram crossed into Edom with his officers and all his chariots. When the Edomites surrounded him and his chariot commanders, he rose up and attacked1 by night.