Ahab had seventy sons in Samaria. Jehu writes to the rulers and elders of the city, telling them to choose the best of their master's sons, set him on the throne and fight for their master's house. They are terrified and answer that they will not make anyone king and will do whatever Jehu commands. Jehu writes again: if they are on his side, they must bring him the heads of Ahab's sons at Jezreel by this time tomorrow. They kill the seventy and send the heads in baskets. Jehu has them piled at the entrance of the gate and tells the people that none of the word of the Lord will fall to the ground, because the Lord has done what he said through Elijah. Jehu kills all who remained of the house of Ahab at Jezreel.
On the way to Samaria, Jehu meets the relatives of Ahaziah, king of Judah, who were going down to greet the king's sons, and has them killed, forty-two men, at the pit of Beth-eked. Then he meets Jehonadab son of Rechab and invites him up into his chariot to see his zeal for the Lord. In Samaria he wipes out those who remained of Ahab's house.
Jehu gathers the people and says that Ahab served Baal a little but he will serve him much. He summons all the prophets, servants and priests of Baal for a great sacrifice. When they are inside the temple, he makes sure no servant of the Lord is among them and orders eighty men to kill them. They tear down the pillar of Baal and the temple and turn it into a latrine. So Jehu destroys Baal out of Israel.
However, Jehu does not turn from the sins of Jeroboam, the golden calves at Bethel and Dan. The Lord promises him that his sons will reign to the fourth generation. But Jehu is not careful to walk in the law of the Lord with all his heart. In those days the Lord begins to cut off parts of Israel, and Hazael defeats the people east of the Jordan. Jehu reigns twenty-eight years and dies.