2 Kings 10:6

10:6 He wrote them a second letter, saying, “If you are really on my side and are willing to obey me, then take the heads of your master’s sons and come to me in Jezreel at this time tomorrow.” Now the king had seventy sons, and the prominent men of the city were raising them.

2 Kings 10:10-11

10:10 Therefore take note that not one of the judgments the Lord announced against Ahab’s dynasty has failed to materialize. The Lord had done what he announced through his servant Elijah.” 10:11 Then Jehu killed all who were left of Ahab’s family in Jezreel, and all his nobles, close friends, and priests. He left no survivors.