I'm not a part of any organized religion, although bishops aren't limited to just Catholic and Mormon. Church wlders in the Amish community are also called bishops.
I only wrote one book, The Books of SPAM, over 2 decades ago. Out of print, now, but fairly popular in the day. It was a parody of the Bible and it was funny enough to make me laugh. Not an easy task. I had a co-worker that bought a copy because he witnessed me writing it, and I let him see snippets of it as I wrote it. A good Mormon boy. He said not to let his brothers know when I would meet them. I deadpanned, "But don't they believe in modern prophets?" He didn't know if to laugh or get angry.
An ex girlfriend tried to get me to go to church with her. She's Catholic. I was raised Protestant. I finally agreed to go to Stations of the Cross services. My white bread Methodist rearing did not prepare me for the amount of up, down, genuflect, kneel, repeat, the service entailed. Any moment, I expected a guy in a sweatshirt to come out, blow a whistle and announce we were to do a dozen squat thrusts.