Thanks all for responding. I might keep my "Christian Filter" on for the moment then. Just to be clear, I'm not averse at all to reading books about Christians (Ben Hur, The Robe) or even books that have Christian themes (Narnia series) necessarily. I have a similar opinion about books involving other religions.
My question is more related to books which are clearly labelled Christian fiction as a genre.
I have other filters (Romance, Paranormal Romance and Erotica), but do turn them off for specific reasons on occasion. I would not have a problem with relaxing a filter on Christian fiction for similar reasons - strong recommendations from respected acquaintances being the most obvious example.