“In order to maintain attention, avoid being too long. An old preacher used to say to a young man who preached an hour, — “My dear friend, I do not care what else you preach about, but I wish you would always preach about forty minutes.” We ought seldom to go much beyond that — forty minutes, or say, three-quarters of an hour. If a fellow cannot say all he has to say in that time, when will he say it? But somebody said he liked “to do justice to his subject.” Well, but ought he not to do justice to his people, or, at least, have a little mercy upon them, and not keep them too long? The subject will not complain of you, but the people will…Brevity is a virtue within the reach of all of us; do not let us lose the opportunity of gaining the credit which it brings. If you ask me how you may shorten your sermons, I should say, study them better. Spend more time in the study that you may need less in the pulpit. We are generally longest when we have least to say. A man with a great deal of well-prepared matter will probably not exceed forty minutes; when he has less to say he will go on for fifty minutes, and when he has absolutely nothing he will need an hour to say it in. Attend to these minor things and they will help to retain attention.”
-Charles Spurgeon, Lectures to My Students (Carlisle, PA, Banner of Truth, 2008), 155-156.
