The great design and intention of the office of a Christian preacher (is) to restore the throne and dominion of God in the souls of men. (Cotton Mather)

To preach is to prove, and to prove is to bind the conscience. Every sermon sets forth the certainty of the things of Scripture and calls the people to believe and do what the Bible says. Or maybe I should say that every sermon should do this. We don’t need to ask whether the preacher will bind the conscience, but how he will bind it and what truth he will preach as binding on the conscience.

But that raises a myriad of questions: What is proof? What kind of certainty do we look for? What types of proofs should we use? Do emotional proofs count? Should the church be bound by every opinion the pastor holds? Is proof “beyond a reasonable doubt” or “beyond a shadow of a doubt?”