One should preach not from one's rational mind but rather from the heart. Only that which is from the heart can touch another heart. One must never attack or oppose anyone. If he who preaches must tell people to keep away from a certain kind of evil, he must do so meekly and humbly, with fear of God.
Thaddeus of Vitovnica, Our Thoughts Determine Our Lives:  The Life and Teachings of Elder Thaddeus of Vitovnica
christianity, eastern-orthodoxy, fear-of-god, humility, meekness, preaching