" we have to emphasise this point because the preparation is not finished just when a man has finished his preparation of the sermon. One of the remarkable things about preaching is that often one finds that the best things one says are things that have not been premeditated, and were not even thought of in the preparation of the sermon, but are given while one is actually speaking and preaching. Another "

― D. Martyn Lloyd-Jones , Preaching and Preachers