Friends:
The Bible and the Christian Science textbook are our only preachers. We shall now read Scriptural texts, and their correlative passages from our denominational textbook; these comprise our sermon.

The canonical writings, together with the word of our textbook, corroborating and explaining the Bible texts in their spiritual import and application to all ages, past, present, and future, constitute a sermon undivorced from truth, uncontaminated and unfettered by human hypotheses, and divinely authorized.

(from the Christian Science Quarterly)