It's "Revelations" time in the 204-rewatch schedule. The review is below and on the Top Ten Religious Episodes page.
Original airdate: 12/15/95
Written by: Kim Newton
Directed by: David Nutter
“Revelations” is the first episode that reverses the roles of Mulder and
Scully surrounding issues of religion, signs, and miracles: Mulder
becomes the skeptic, and Scully becomes the believer. Many similar
issues appear especially in the fifth-season episode “All Souls,” which
like this episode features Scully’s conversation with a priest in a
confession booth. Viewed together, the two episodes show a progression
in Scully’s faith journey and present an interesting backdrop or
counterpoint for her spiritual struggles in the second movie, I Want to Believe.
The opening monologue by Reverend Findley sets up some of the main
themes for the episode: testing faith, miracles, science and skepticism
vs. faith, believing without question. These themes are echoed
especially in the dialogues between Mulder and Scully and also in some
of the conversations between Scully and other characters.
The reverend says that God tests our faith so that we won’t take it for
granted. As he begins to bleed, he says that his blood flows as a test
of their faith. (Mulder later says that what he has seen in this case
has tested only his patience, not his faith.) The reverend says that the
test is whether they will open themselves to divine possibilities
(recalling Mulder’s frequent appeal to extreme possibilities), and only
then will they truly understand. While Scully does not refer to her
faith being tested, the way she is affected by the case and her closing
conversation with the priest suggest that this case is indeed a test of
her faith, which until now has waned but is possibly being rekindled.
Scully is open to the possibility of divine causes for the signs and
events she has encountered; Mulder is not. As her conversation with the
priest may suggest, it is because she is open to divine possibilities
that she truly understands, although from Mulder’s point of view, it may
be her openness that makes her more gullible.