If ever you want to know what values an organization holds dear, look at what it takes for that organization to kick someone out..
One of the few fun things about Quakers (Society of Friends) is that belief in God or the lack thereof will not make you unwelcome. Joining the Army will.
Denying God in the Episcopal Church will not get you disciplined if you are a bishop. Expressing a legal opinion contrary to the property interests of the Presiding Bishop may very well.
It's important to have your priorities.