2 Kings 9:14-15

14So Jehu, the son of Jehoshaphat and grandson of Nimshi, became an enemy of King Joram. Joram had been in Ramoth Gilead with the whole army of Israel. They were fighting against Hazael, the king of Syria, who wanted to attack Israel.

15The Syrian soldiers had hurt King Joram in the battle against King Hazael. So he returned to Jezreel to get well again. Jehu said to his men, ‘If you really want to help me, do not let anyone leave this city. Nobody must go to warn the people in Jezreel.’