If your church legally forbids you to carry, stop attending. The Shepherd is not doing a very good job of tending the flock if he only prays shit will not happen in his church.
Attacks on churches date all the way back to colonial times and for the same reason: a bunch of people gathered at one place at a fixed hour makes killing easier.
Any church that knows what it is doing, will have a minimum of armed security for more than just the threat of a nutjob intending to do a mass shooting. This is an old episode of The Pro Arms Podcast that is very illuminating. Listen to it and learn what to ask your pastor/priest/rabbi/etc.
PS: No, I ain’t back. Just giving common sense advice.