“The object of preaching is the salvation of the soul; and that salvation consists in a redemption from the guilt, love, and practice of iniquity. The instrument of this redemption is God’s truth, as he has revealed it. “Sanctify them through thy truth.” The preacher is most explicitly called a herald; that is, the deliverer of a message. Now, the herald does not make his message, he merely transmits it. He has nothing to do with judging its wisdom or fitness; let him simply proclaim it as it is given to him. This was God’s command to an ancient preacher: “Arise, go unto Nineveh, that great city, and preach unto it the preaching that I bid thee.” (Jonah 3:2.)”