2 Kings 10:19

19 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.)

2 Kings 10:19 Meaning and Commentary

Ver. 19 Now therefore call unto me all the prophets of Baal, all his
servants, and all his priests, let none be wanting
All that were employed in the several parts of religious worship given him, and in performing any rite and ceremony belonging to it; in invocation of him, and singing praises to him, as the prophets; in offering sacrifices to him, as the priests; or in assisting them in their service, who may be meant by his servants or ministers:

for I have a great sacrifice [to do] to Baal;
by which, though he might mean a sacrifice of his prophets, priests, servants, and worshippers, he would have it otherwise understood, and his design was to deceive, which cannot be justified:

whosoever shall be wanting, he shall not live:
but be put to death; this he said, pretending his great zeal for Baal, when his view was by this threatening to get all his worshippers together to destroy them, that none might escape as follows:

but Jehu did it in subtlety, to the intent that he might destroy the
worshippers of Baal:
the Targum renders it, "with wisdom"; but Jarchi and Ben Gersom much better, "in deceit"; the word signifies supplantation, such as Esau charged Jacob with.

2 Kings 10:19 In-Context

17 When they arrived there, Jehu killed all of Ahab's relatives, not sparing even one. This is what the Lord had told Elijah would happen.
18 Jehu called the people of Samaria together and said, "King Ahab served the god Baal a little, but I will serve him much more.
19 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.)
20 Then Jehu ordered, "Proclaim a day of worship in honor of Baal!" The proclamation was made,
21 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.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.