Definitions of Oxymoron on the Web:
A paradox reduced to two words, usually in an adjective-noun ("eloquent silence") or adverb-adjective ("inertly strong") relationship, and is used for effect, to emphasize contrasts, incongruities, hypocrisy, or simply the complex nature of reality. Examples: wise fool, ignorantly learned, laughing sadness, pious hate. Some others:
You might want to actually read that definition while you're at it. Feel free to attack Catholicism if that gets you off, but since it is defintely a "church" (whether you agree with what that church has to say or not) you look pretty foolish labling the term oxymoronic.