R.L. Dabney’s book on preaching, Evangelical Eloquence, makes a very strong case for the practical of expository preaching. That is, preaching through entire books of the Bible, verse-by-verse, with the aim of making known “the whole counsel of God” (Acts 20:27) to the people of God.
In a chapter entitled, “Cardinal Requisites of the Sermon,” he deals with “the general qualities which must characterize the structure of every sermon” (p.105). It is telling that the very first one of these qualities that he states as a cardinal requisite of true biblical preaching is that of “textual fidelity” (or sticking to the text, so to speak). There he writes,
The best argument to enforce upon you this virtue is suggested by the same fact – that the preacher is a herald. The first quality of the good herald is the faithful delivery of the very mind of his king. Our conception of our office, and of the revealed word as an infinitely wise rule for man’s salvation, permits us to discuss the text in no other spirit.” (p.105)
A firm persuasion of the truth of the calling of the preacher as a herald of the King ought to lead those of us who have the great privilege and responsibility to be pastors and preachers to stick to the text (to tell the truth of it), to preach through entire books of the Bible (to tell the whole truth of it), and to not mingle it with ideas that are not truly present in the text (to tell nothing but God’s truth).
Only then can the preacher say, with the Apostle Paul, that he is ‘innocent of the blood of all men because he did not shrink back from declaring to them the whole counsel of God’ (Acts 20:26-27).