Jehu called the people of Samaria together and said, "King Ahab served the god Baal a little, but I will serve him much more.
Call together all the prophets of Baal, all his worshipers, and all his priests. No one is excused; I am going to offer a great sacrifice to Baal, and whoever is not present will be put to death." (This was a trick on the part of Jehu by which he meant to kill all the worshipers of Baal.)
Then Jehu ordered, "Proclaim a day of worship in honor of Baal!" The proclamation was made,
and Jehu sent word throughout all the land of Israel. All who worshiped Baal came; not one of them failed to come. They all went into the temple of Baal, filling it from one end to the other.
Then Jehu ordered the priest in charge of the sacred robes to bring the robes out and give them to the worshipers.
After that, Jehu himself went into the temple with Jonadab son of Rechab and said to the people there, "Make sure that only worshipers of Baal are present and that no worshiper of the Lord has come in."
Then he and Jonadab went in to offer sacrifices and burnt offerings to Baal. He had stationed eighty men outside the temple and had instructed them: "You are to kill all these people; anyone who lets one of them escape will pay for it with his life!"
As soon as Jehu had presented the offerings, he said to the guards and officers, "Go in and kill them all; don't let anyone escape!" They went in with drawn swords, killed them all, and dragged the bodies outside. Then they went on into the inner sanctuary of the temple,
brought out the sacred pillar that was there, and burned it.
So they destroyed the sacred pillar and the temple, and turned the temple into a latrine - which it still is today.
That was how Jehu wiped out the worship of Baal in Israel.
But he imitated the sin of King Jeroboam, who led Israel into the sin of worshiping the gold bull-calves he set up in Bethel and in Dan. 1
References for 2 Kings 10:29
10.29 1 K 12.28-30.
The Lord said to Jehu, "You have done to Ahab's descendants everything I wanted you to do. So I promise you that your descendants, down to the fourth generation, will be kings of Israel."
But Jehu did not obey with all his heart the Law of the Lord, the God of Israel; instead, he followed the example of Jeroboam, who led Israel into sin.
At that time the Lord began to reduce the size of Israel's territory. King Hazael of Syria conquered all the Israelite territory
east of the Jordan, as far south as the town of Aroer on the Arnon River - this included the territories of Gilead and Bashan, where the tribes of Gad, Reuben, and East Manasseh lived.
Everything else that Jehu did, including his brave deeds, is recorded in [The History of the Kings of Israel.]
He died and was buried in Samaria, and his son Jehoahaz succeeded him as king.
Jehu had ruled in Samaria as king of Israel for twenty-eight years.