A lot of assumptions in this statement. It is very possible that GP has no knowledge that this psychologist has a religious bent to his practice, so to speak. How would he know, unless patients of his reported back that they had had this experience with this psychologist? Most people would probably not tell their GP if they had this experience-- as the OP has not, or has not yet. Also, it may be the case that this dude does not regularly preach in his sessions, so other people may not even have had this experience. After all, the OP did not have this experience in the beginning-- maybe he's cured everyone else before he has to deliver the Jesus speech

To the OP: I'd make another appointment with your GP for a consultation. Tell him that this psychologist was a bust because he told you you would be cured if you just prayed, and you can get that advice for free on TV. Say you need another referral to a psychologist who actually practices psychology rather than evangelicalism. See what he says. My guess is he will be horrified about what this shrink said to you. If he's not, I'd be looking for another GP too, because that is not the good practice of medicine.