Here's the thing, YES you can if "you have permission", the ORC doesn't state who gives the permission or what you need. YES I agree if the pastor/rabbi/leader says "Yes, you may carry if you have your CCW" but would I ask for a letter saying that? YES. We're talking about a felony here, it's too easy for a visiting officiant to change rules because he feels like it (it's happened to me) so I'd be sure I had significant proof. Also, it doesn't say in ORC who gives permission, lots of churches and synagogues are run by a governing body... do you need the board to say yes, or just the senior leader? What if the secretary says sure they have a policy that it's fine... Anyway, I'm in the market for a synagogue, you better believe one of my first questions is "What is the temple's policy on CCWs?" Along with a few other questions my wife and I have.