A couple of years ago, a student in one of my preaching courses was struggling terribly. The sermons he preached in class were plodding, disorganized and weakly supported exegetically and theologically. He was aware that he was not meeting expectations, and he was frustrated and embarrassed by his performance. But then, in his final opportunity to redeem himself in the course, he surprised us all by preaching a stunning sermon, both profound and lyrical. It was unexpectedly excellent.