2 Kings 10:9

5 So the palace administrator, the overseer of the city, the elders, and the guardians sent a message to Jehu: “We are your servants, and we will do whatever you say. We will not make anyone king. Do whatever is good in your sight.”

6 Then Jehu wrote them a second letter and said: “If you are on my side, and if you will obey me, then bring the heads of your master’s sons to me at Jezreel by this time tomorrow.” Now the sons of the king, seventy in all, were being brought up by the leading men of the city.

7 And when the letter arrived, they took the sons of the king and slaughtered all seventy of them. They put their heads in baskets and sent them to Jehu at Jezreel.

8 When the messenger arrived, he told Jehu, “They have brought the heads of the sons of the king.” And Jehu ordered, “Pile them in two heaps at the entrance of the gate until morning.”

9 The next morning, Jehu went out and stood before all the people and said, “You are innocent. It was I who conspired against my master and killed him. But who killed all these?

10 Know, then, that not a word the LORD has spoken against the house of Ahab will fail, for the LORD has done what He promised through His servant Elijah.”

11 So Jehu killed everyone in Jezreel who remained of the house of Ahab, as well as all his great men and close friends and priests, leaving him without a single survivor.

12 Then Jehu set out toward Samaria. At Beth-eked of the Shepherds,

13 Jehu met some relatives of Ahaziah king of Judah and asked, “Who are you?” “We are relatives of Ahaziah,” they answered, “and we have come down to greet the sons of the king and of the queen mother.”

Read all of 2 Kings 10