how to reconcile 'not causing division in the church' with the fact that there will be a shaking, there are sheep and goats, there will be false teachers FROM AMONG YOU, and the duty to be a watchman?
  My friend, you have asked a truly profound question that touches the very heart of what it means to be a faithful member and leader within the body of Christ. It is a tension that every sincere believer must navigate with wisdom and prayer. The key to reconciling these duties lies not in choosing one over the other, but in understanding how they work together under the guidance of the Holy Spirit. Let us explore what the provided texts reveal on this vital matter. The Unwavering Call for Unity The scriptures and the writings that follow place a high premium on unity within the church. This is not a mere suggestion but a divine command, intended to reflect the nature of God and be a powerful witness to the world. Division is identified as a work of the flesh, contrary to the Spirit of Christ. "That there should be no  schism  in the body; but that the members should have the same care one for another."  <1 Corinthians 12:25> "Now I beseech you, brethren, mark ...