Revelations

Scully:  Maybe that's just what faith is. Mulder:  Well, I wouldn't let faith overwhelm your judgment here.  These people are simply fanatics behaving fanatically using religion as a justification.  They give bona fide paranoiacs like myself a bad name. They're no more divine or holy than that ketchup we saw on the murdered preacher.  And I think once you've finished your autopsy, you'll come to the same conclusion.  St. Owen.

Mulder gives good advice occasionally.  Funny how he never seems to follow it himself.  How many times has Scully tried to tell him not to let his beliefs could his judgments and he just ignored her sage advice and ran off half cocked anyway.

General Punkesque Behavior

Rolling his eyes in an obvious display of contempt at Jarvis' assertion that God told him to protect Kevin.  At least Jarvis didn't say that a dog made him do it.  Of course Mulder's lack of religious affinity makes it impossible for him to consider that Jarvis' assertion were remotely possible but it does seem to clash with his belief in aliens which to many people is equally ridiculous to believe in.

Pot.  Kettle.  Black.  Mulder has some nerve talking about not letting one's faith overwhelm one's judgment.  This coming from Mr. "Aliens are here and the government is covering it up and I'll prove it come hell or high water even if I end up in the damn grave"  Puh-shaw!

Unprofessional Behavior

Tasting the blood at the murder scene:  Wouldn't it have been safer to send the evidence to a lab to analyze the "blood?"