2 Kings 8:16-22

In the fifth year of Joram son of Ahab king of Israel, when Jehoshaphat was king of Judah, Jehoram son of Jehoshaphat began his reign as king of Judah. He was thirty-two years old when he became king, and he reigned in Jerusalem eight years. He followed the ways of the kings of Israel, as the house of Ahab had done, for he married a daughter of Ahab. He did evil in the eyes of the LORD. Nevertheless, for the sake of his servant David, the LORD was not willing to destroy Judah. He had promised to maintain a lamp for David and his descendants forever. In the time of Jehoram, Edom rebelled against Judah and set up its own king. So Jehoram went to Zair with all his chariots. The Edomites surrounded him and his chariot commanders, but he rose up and broke through by night; his army, however, fled back home. To this day Edom has been in rebellion against Judah. Libnah revolted at the same time.