If a person thinks of prayer as a way of not getting involved, of not acting, of avoiding risk, if he supposes that prayer lets him escape fatigue and danger, assures him of tranquility and a good conscience, gives him all-around protection, then we can say that he has not understood the reality of prayer. . .
Jacques Ellul, Prayer and Modern Man, 164-5.
One of the best books on prayer I've ever read. Ellul had a warm heart and a sharp mind.