Preachers invest much of their lives in thinking about sermons. If they preach regularly, they are all too aware that their praying, Bible reading, planning, studying, outlining, writing, practicing, and delivery involve a major time expenditure. The typical evangelical pastor preaches two sermons weekly. He may also be responsible for other presentations, such as a Sunday School lesson or a brief devotional message for a midweek service. Even if he possesses the keenest