Can a self-called man preach with the same authority as a God-called preacher? Can a man whose confidence in the Holy Scriptures is shaken by personal doubts preach with the authority of the man whose whole heart, soul and mind are dominated by conviction concerning the absolute accuracy of the Bible? Can a man whose own conscience rises up in condemnation of him for some secret sin in his life preach with the same authority as the man whose conscience condemns him not (I John 3:21-22)?