Ohio now has statewide preemption with respect tofirearm matters, ORC 9.68.
Toledo's ordinance, if it's still on the books, is preempted. That might not stop them from threatening to use it, but as I said, preemption is the law of Ohio now.
Carrying concealed in a house of worship is a no-no without approval of the church authorities, however. Such a place is off-limits statutorily.
There is no such restriction on open carry in a house of worship, so you might be subject to the trespass laws if you are asked to leave and don't.