2 Kings 10:19-20

Now, summon all the prophets of Baal, all his worshipers and all his priests; let no one be missing, for I have a great sacrifice for Baal; whoever is missing shall not live.” But Jehu did it in cunning, so that he might destroy the worshipers of Baal. And Jehu said, “Sanctify a solemn assembly for Baal.” And they proclaimed it.