2 Kings 10:11-17

11After that, Jehu killed everybody in Jezreel who was a descendant of Ahab. He also killed Ahab's officers, his friends and his priests. No descendant of Ahab remained alive.

12Jehu left Jezreel and he went towards Samaria. He came to Beth Eked, where shepherds had a camp.

13He met some relatives of Ahaziah, the king of Judah. Jehu asked them, ‘Who are you?’ They said, ‘We are relatives of Ahaziah. We are going to Jezreel to visit the families of the king and his mother.’

14Jehu said to his men, ‘Catch them, but do not kill them!’ So they took hold of them. Then they killed them all near the well at Beth Eked. They killed 42 people, so that none of them remained alive.

15When Jehu left Beth Eked, he met Rekab's son Jehonadab. He was coming to meet Jehu. Jehu said, ‘Hello! Do you trust me, as I trust you?’ Jehonadab answered, ‘Yes, I do!’ Jehu replied, ‘Then hold your hand out to me.’ So he did that and Jehu pulled him up into his chariot.

16Jehu said, ‘Come with me. You will see that I want to serve the Lord faithfully.’ So Jehonadab rode with Jehu in his chariot.

17Jehu arrived in Samaria. He killed all the descendants of Ahab who were still alive in Samaria. The Lord had told Elijah that this would happen.