Someone may say, "Since I am a believer, I am a member of Christ." Generally speaking, this saying is right. Strictly speaking, however, as a natural man, you are not a member of Christ. It is only when the life of Christ, the nature of Christ, and everything of Christ have entered your being to regenerate and reconstitute you that you become a member of Christ. Originally you were altogether a natural person and not a member of Christ. In order to be a member of Christ you must be reconstituted. How can you be reconstituted? Christ has to enter into you to regenerate you, and He has to continue to enter into you, to dispense His element into you, in order to constitute you. As a result, your entire being, from the inside to the outside, will pass through a process of thorough reconstituting, so that you will no longer be what you were originally, but you will be a regenerated and transformed person. Only this regenerated, transformed person can be a member of Christ.
- "One Body, One Spirit, and One New Man" PP 19-20