Deception is nowhere more common than in religion. And the persons most easily and damningly deceived are the leaders. Those who deceive others are first themselves deceived, for not many, I think, begin with evil intent. The devil, after all, is a spiritual being. His usual mode of temptation is not an obvious evil but to an apparent good. The commonest forms of devil-inspired worship do not take place furtively at black masses with decapitated cats but flourish under the bright lights of acclaim and glory, in a swirl of organ music.
Eugene H. Peterson, Under the Unpredictable Plant an Exploration in Vocational Holiness
church, leadership, pastoral-ministry