He joined Ahab’s son Joram in a battle against King Hazael of Syria at Ramoth Gilead in which the Syrians defeated Joram.

You will destroy the family of your master Ahab. ¹  I will get revenge against Jezebel for the shed blood of my servants the prophets and for the shed blood of all the Lord’s servants. ² 

Ahab had seventy sons living in Samaria. ¹  So Jehu wrote letters and sent them to Samaria to the leading officials of Jezreel and to the guardians of Ahab’s dynasty. This is what the letters said, ² 

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.

Jehu assembled all the people and said to them, “Ahab worshiped ¹  Baal a little; Jehu will worship ²  him with great devotion. ³ 

He did evil in the sight of ¹  the Lord like Ahab’s dynasty because, after his father’s death, they ²  gave him advice that led to his destruction.

While Jehu was dishing out punishment to Ahab’s family, he discovered the officials of Judah and the sons of Ahaziah’s relatives who were serving Ahaziah and killed them.

You implement the regulations of Omri, and all the practices of Ahab’s dynasty; ¹  you follow their policies. ²  Therefore I will make you an appalling sight, ³  the city’s ⁴  inhabitants will be taunted derisively, ⁵  and nations will mock all of you.” ⁶ 

In the thirty-eighth year of Asa’s reign over Judah, Omri’s son Ahab became king over Israel. Ahab son of Omri ruled over Israel for twenty-two years in Samaria. ¹ 

Elijah the Tishbite, from Tishbe in Gilead, said to Ahab, “As certainly as the Lord God of Israel lives (whom I serve), ¹  there will be no dew or rain in the years ahead unless I give the command.” ² 

Some time later, in the third year of the famine, the Lord told Elijah, ¹  “Go, make an appearance before Ahab, so I may send rain on the surface of the ground.”

Ahab told Obadiah, “Go through the land to all the springs and valleys. Maybe we can find some grazing areas ¹  so we can keep the horses and mules alive and not have to kill ²  some of the animals.”

The seventh time the servant ¹  said, “Look, a small cloud, the size of the palm of a man’s hand, is rising up from the sea.” Elijah ²  then said, “Go and tell Ahab, ‘Hitch up the chariots and go down, so that the rain won’t overtake you.’” ³ 

Now a prophet visited King Ahab of Israel and said, “This is what the Lord says, ‘Do you see this huge army? ¹  Look, I am going to hand it over to you this very day. Then you will know that I am the Lord.’”

So Ahab went into his palace, bitter and angry that Naboth the Jezreelite had said, ¹  “I will not sell to you my ancestral inheritance.” ²  He lay down on his bed, pouted, ³  and would not eat.

When Jezebel heard that Naboth had been stoned to death, she ¹  said to Ahab, “Get up, take possession of the vineyard Naboth the Jezreelite refused to sell you for silver, for Naboth is no longer alive; he’s dead.”

“Have you noticed how Ahab shows remorse ¹  before me? Because he shows remorse before me, I will not bring disaster on his dynasty during his lifetime, but during the reign of his son.” ² 

The rest of the events of Ahab’s reign, including a record of his accomplishments and how he built a luxurious palace and various cities, are recorded in the scroll called the Annals of the Kings of Israel. ¹ 

Jehu ordered ¹  his officer Bidkar, “Pick him up and throw him into the part of the field that once belonged to Naboth of Jezreel. Remember, you and I were riding together behind his father Ahab, when the Lord pronounced this judgment on him,

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.” ¹