One well-worn formula for sermon development says: “Tell them what you are going to tell them; tell them what you are telling them; then tell them what you have told them.” When our purpose requires that we explain a concept, that is splendid advice. In the introduction to such a sermon we state the complete idea; in the body we take the idea apart and analyze it; and in the conclusion we repeat the idea again. Certainly such a development wins through clarity anything it loses in suspense. As an example, Alexander Maclaren
Deductive sermons win through clarity was they lose in suspense
