If he does, he is a factionist, whether right or wrong in doctrine. Heresy is therefore a behavioral problem more than a doctrinal problem. If men are left free, it is certain that they will differ, which is as it should be since we grow in an environment of vigorous differences. And so unity by its very nature is oneness amidst diversity. A family is a good example of how this works, for its members can be of one heart and one soul despite differences in age, experience, sex, ability, and hangups.
Unity always has a cohesiveness that holds the diverse elements together.
Some suppose that even among thieves, when they are united, there is honor. Whether in the home or the church, the cohesiveness is love and mutual respect. That love is the bond that holds together that which would otherwise be divided is evident from what the apostle said in earlier verses of the chapter. That little as is powerful in that it reveals that we are to show the forbearance and love to each other that Jesus showed us. Such instruction implies that there will be differences.