But then he described the individual principle parts of that unity, which is every believer. Every believer is to function in the grace of God with concern for other believers. We are one in Christ and we are to deny ourselves in order to function in that unity together. The purpose for the unity is for the building up of the body of Christ, for the maturing of the body of Christ. So that we are no longer babes tossed to and fro by every wind of teaching.