It is important to understand, I think, the distinction between church, a legal and transient institution, and Church, an eternal 'thing' for a lack of a better word. You can be a member of any church but that in and of itself doesn't guarantee membership in His Church, in my opinion. I suppose one can merely claim this or that, but fruits follow those who believe as evidence that your faith pleases God. I would even add that a very specific list of fruits follow those who believe.

The religion of Heaven wasn't revealed to man to foster loyalty to man and its creations, but to connect man back to God as was his condition before the fall. If the vehicle of a church helps ones journey back to Gods presence, then every step should be taken to benefit from it. To be clear, it is possible to practice church like activities outside of any institutional hierarchy. It is necessary to gather together in His name so we can bear one another burdens and speak freely about the concerns of our souls.

I think we all can be part of the same Church. But at present, in my view at least, there are way too many divisions between the christian world to come together and add to the table what we have to offer.

Just some quick thoughts.