When he finished offering the burnt offering, Jehu said to the guards and officers, "Go in and kill them. Don't let anyone out." So they struck them down with the sword. Then the guards and officers threw [the bodies] out and went into the inner room of the temple of Baal.
So all the people of the land went to the temple of Baal and tore it down. They broke its altars and images into pieces, and they killed Mattan, the priest of Baal, at the altars. Then [Jehoiada] the priest appointed guards for the LORD's temple.
"Whoever sacrifices to any gods, except the LORD alone, is to be set apart for destruction.
That prophet or dreamer must be put to death, because he has urged rebellion against the LORD your God who brought you out of the land of Egypt and redeemed you from the place of slavery, to turn you from the way the LORD your God has commanded you to walk. You must purge the evil from you.
The man of God cried out against the altar by a revelation from the LORD: "Altar, altar, this is what the LORD says, 'A son will be born to the house of David, named Josiah, and he will sacrifice on you the priests of the high places who are burning incense on you. Human bones will be burned on you.'"
Then Elijah ordered them, "Seize the prophets of Baal! Do not let even one of them escape." So they seized them, and Elijah brought them down to the Wadi Kishon and slaughtered them there.
The LORD's sword is covered with blood. It drips with fat, with the blood of lambs and goats, with the fat of the kidneys of rams. For the LORD has a sacrifice in Bozrah, a great slaughter in the land of Edom.
On that day"-- the declaration of the LORD of Hosts-- "I will erase the names of the idols from the land, and they will no longer be remembered. I will remove the prophets and the unclean spirit from the land.
If a man still prophesies, his father and his mother who bore him will say to him: You cannot remain alive because you have spoken falsely in the name of the LORD. When he prophesies, his father and his mother who bore him will pierce him through.
He burned the bones of the priests on their altars. So he cleansed Judah and Jerusalem.