Not as far as we Noah are concerned, but the Vatican on the Exorcist's side see it as their "holy mission" or something. To be honest we don't really care what they believe one way or another.

[there are a ton of biblical themes here at work, but really Wisely's just too lazy to explain them properly and settles for leaning back against the couch and patting the cushion beside him B) have a seat while he probes Elliot's mind for his thoughts on the matter]