I took a package to the post office. The clerk checked the zip code and scales, then gave me the charge. I took it then to the post office in a neighboring town and was given the same cost, then to a small rural post office where the postmaster gave the same answer. They did not need to call for a conference to give their interpretation on what to charge. They all spoke the same because they all followed one guide, one authority.
As long as religious people follow different church manuals, creeds, catechisms, confessions of faith, etc., that are published by various denominational headquarters, they will continue to be divided and give different answers. It is like reading the Bible with colored glasses on our nose. One man has Martin Luther on his nose, another has the pope, and another, John Calvin or Ellen G. White, etc. Why not take the Bible alone and read it as though it had dropped from God Himself into our own hands? Only then can we hope to have unity for which Jesus prayed (John 17) and for which Paul pleaded (Gal. 1:6-9; I Cor. 1:10).