No one can hinder there being “one body," but when you come to keeping " the unity of the Spirit in the bond of peace," you get that power of the Spirit of God that makes me practically realize the unity of the body in the path down here. God alone can carry it out, but that is what I get down here.
In the house are false brethren crept in unawares; but there is no such thing as false members in the body. If you strike my hand, I say, why are you striking me? But I do not speak thus of a house. Failure does not destroy the character of the house as such; if badly built, it is still a house. Just as the Lord says of the temple, “My Father's house," though they had made it a den of thieves.