Expositional preaching is important because God’s Word is what convicts, converts, builds up, and sanctifies God’s people (Heb. 4:12; 1 Pet. 1:23; 1 Thess. 2:13; Jn. 17:17). Preaching that makes the main point of the text the main point of the sermon makes God’s agenda rule the church, not the preacher’s.