Not to say that anyone is wrong for believing in religion but why is he advertising it? As a part of the ethical guidelines set out for mental health care professionals, they aren't supposed to allow their religion or other beliefs to influence their therapy work.

Sure, I would imagine that there are people who would feel better about seeing a therapist who believes in the same faith that they do. I just have no idea how he might have missed that particular APA guideline.

Anyway, as long as he doesn't try to push religion onto you then things should be fine. If he does bring it up then just tell him that you aren't religious and that you don't feel comfortable with such a topic. He should be able to offer treatment just fine without bringing up personal beliefs.