There are those that believe that since there are no pianos or organs or guitars in the first century church that they are not to be allowed in the church, reject others that do and use sola scriptura as their guide. To use the Bible as a sword to cut our brothers and sisters is of the flesh and against the clear teaching of scripture. It is the accuser of the brethren leading his people to judge and condemn other members of the body of Christ. Father Chardin believed in a global unification of human awareness as a necessary prerequisite for any future progress of mankind. No question is receiving so much attention at the present time in all branches and divisions of the Christian Church as the question of Church unity.
Schism is a grievous sin.
But having said that, one must also point out that there is obviously great confusion, and much disagreement, as to what constitutes unity, as to what is the nature of unity, and as to how unity is to be obtained and preserved. The result of being born into a given family, Christians are brothers and not merely as association of friends. It is through working together, evangelizing together, praying together, and having fellowship together, he declares, that we shall ultimately arrive at the unity of the faith. The unity is the unity of those who believe that there is only one Lord and He is so perfect. Endeavoring to keep the unity of the Spirit in the bond of peace.