Divisions in the Church are caused any time we go beyond what God is saying. The human mind seems to automatically fill in the blanks and make assumptions that add to Scripture, but the Holy Spirit will guide and teach us if we stand in His Presence.
Neither pray I for these alone, but for them also which shall believe on me through their word; That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me. John 17:20-21
When we consider that Secularists are limited to claims based on assumptions just because they deny Divine revelation and refuse to listen to God, we realize that we, as Christians, are also limited whenever we add to (or take from) what God says. We are so good at rationalizing away certain portions of Scripture or going beyond what it said. Often, translations of the Bible (including KJV) make decisions that blur the meanings of words. However, we have the original text, and more importantly, we have the Holy Spirit to lead us.
And not as Moses, which put a vail over his face, that the children of Israel could not stedfastly look to the end of that which is abolished: but their minds were closed. For to this day, at the reading of the old covenant, the same veil remains; it is not lifted, because it is set aside only in Christ. 2 Corinthians 3:13-14
Pride and dogmatism are a huge problem in the Church. Only the Holy Spirit can solve this. The Church will be joined together and brought into God’s pattern by the power and guidance of the Holy Spirit. He alone will We demolish arguments and every pretension that sets itself up against the knowledge of God, and take captive every thought to make it obedient to Christ. 2 Corinthians 10:5