Teaching Preaching: Isaac Rufus Clark and Black Sacred Rhetoric - Paperbackby Katie Geneva Cannon (Author) "If you ain't got no proposition, you ain't got no sermon neither." This was the battle cry of Isaac Rufus Clark, one of the most influential and colorful professors of homiletics in the black church in the twentieth century. Clark taught at the Interdenominational Theological Center in Atlanta for twenty seven years (1962 1989). In Teaching Preaching, Katie Cannon, one of Clark's myriad preaching protgs, conceives her