Didn't put it together until lastnight while watching Boondock Saints, but doesn't the catholic church use latin for prayers and so forth?
That being said, latin is also the language of satan. Witches spells are in latin, satanist use latin in their rituals.
What does the catholic church and satanist have in common...latin...satan's language...so catholic prayers are being said in satan's prefered language.
That should speak volumes about the catholic church.