Theology: this is to build relationship with God . Bryan Chappell: The main idea of an expository sermon the topic, the divisions of that idea, main points, and the development of those divisions, all come from truths the text itself contains. No significant portions of the text is ignored. In other words, expositors willingly stay within the boundaries of the text and do not leave until they have surveyed its entirety with its hearers. (Christ-Centered Preaching) John Stott: Exposition refers to the content of the sermon (biblical truth) rather than its style (a running commentary). To expound Scripture is to bring out of the text what is there and expose it to view. The expositor opens what appears to be closed, makes plain what is obscure, unravels what is knotted, and unfolds what is tightly packed. (Between Two Worlds)