Nottooold don't tell anyone - but I have a few vicar friends who quietly admit to not believing in God! I was shocked at first, but I count quite a few from various places we have lived in, as my friends, and DBH's parents are strongly involved in the church, as was DBH for many years. He and DS were both cathedral choristers.
I have asked many a clergyman over a glass of wine about their beliefs. It seems that when they were young, they did believe, but after a while they saw it as a way to bring comfort and peace and stability to those who need it, a chance to do good, provide a place of safety and welcome to those who felt fear and anxiety in a mad world, and to try to guide people's moral behaviour in some cases. My own vicar here is lovely, and holds discussions on philosophy once a week in her house! You would never know that any of our team here were vicars, they are all bonkers and all have other jobs as well. Anyone (new male curate) being too pious soon gets their pomposity pricked, but humourously. I don't go to church all that often, usually because I have been roped in to sing in the choir on special occasions and DBH plays the organ on occasion, but they are central to our village life, organising all sorts of lovely events.