So, what is the Church which is not of this world It is a spiritual entity having one essential thing in common and without that one thing there is no membership, regardless of how long the institution has been functioning or by what earthly powers it is backed. The thing common to all the members of the Church of Jesus Christ is not any physical characteristic. It is not found in rituals, sacraments, or liturgies. It is a spiritual reality which has real physical impact upon the members of the Church of Jesus Christ, and which can actually be seen to influence the behaviors of the individual members.
God's Spirit instructs us through the Apostles to be in the world but not of it. There is only one power which can make that real in our lives. It is not found in mystical meditations or physical regimens or mantra repetitions or ritual practices. This one thing is in fact the very thing which identifies ALL the members of the Church of Jesus Christ, regardless of vagaries in style and techniques of worship.
This one element is so important that it imparts the Righteousness of God upon the member in the Church of Jesus Christ. And that is a righteousness no man can achieve by works he may do regardless of how long he lives in the flesh. To have this one characteristic, this single most important thing to be a member in the Church of Jesus Christ, The Body of Christ, you must be a family member of the most eclectic family humanity could possibly produce. You must be in God's family.
But family membership is not the one thing you must have to be a member of the Church of Jesus Christ. No, what every member must have is The Life of God in their spirit. ONLY the Life of God can produce works of righteousness that measure up to the righteousness standards of God's nature. So to be a family member you must have the Life of the Head of the Church of Jesus Christ.
If we divide the debate into two camps, two sides, it is the means by which a human being obtains the Life of God in them that is at issue.
Thank you for sharing your testimony and insights, dear brother in Christ!