I would not say that the whole church is the bride. The church as a whole makes up the body but from within the body comes the bride.
I would guess that the way we would be considered to be the bride or not to the Lord is whether or not we have the wedding garments on and are full of the Holy Ghost.
I would guess that the way we would be considered to be the bride or not to the Lord is whether or not we have the wedding garments on and are full of the Holy Ghost.