And yet if your brethren entertain themselves with theory-making, or deem their theories important; do not therefore separate from them; only you yourself be given to the work of saving the lost. Perhaps one of the mightiest elements of ministerial power, is the deep conviction on the soul, of the lost condition of man. It must give fervor and frequency to prayer, and tend greatly to produce a conviction in others. Your hearer may be proud and powerful in his philosophy, he may be self-complacent