(Tim, w/thanks to David A.)
"The worship of idols is a most ridiculous thing, and it is but justice to represent it so and expose it to scorn. This will, by no means, justify those who ridicule the worshippers of God in Christ because the worship is not performed just in their way. Baal's prophets were so far from being convinced and put to shame by the just reproach Elijah cast upon them that it made them the more violent and led them to act more ridiculously" (Matthew Henry on Elijah's call to repentance in 1Kings 18).
