Once anything is added to the sacrifice of Christ for salvation, that individual no longer is a believer, but is dependent upon their own good works for admittance to heaven. The Church is much bigger than any list of members of recognized denominations. Read Mega Shift to discover how little we know of the Body of Christ in Muslim lands, and how surprised we will be at His coming.
Actually the Body of Christ and the Bride of Christ are two metaphors that refer to the same thing in different aspects..
They are not churches they are organic in vision.. but since they both are spiritual they are not fleshly.. In my view the whole bible trys to convert “the chosen” from a fleshly point of view to a spiritual point of view of reality..
Its not easy either.. my own adventure from a fleshly point of view to a spiritual one is long and hard won.. Probably some or even most of the Apostles went thru the same thing.. It is indeed a metamorphosis like from a worm to a butterfly.. All denominations I have visited and studied have a fully developed fleshly identity.. and they are many.. Some maybe most are bound to remain a worm.. Which is OK.. must be, thats the way its supposed to be..
God I think is not a doofus..