The present 9Marks Journal lays out some of the basics of expositional preaching as well as a few of the mechanics. If you happen to think that applying the text is the work of the Holy Spirit, start with Michael Lawrence's piece. There's a difference between a preacher's application and the Spirit's conviction, he says. Preaching that doesn't apply the text is not preaching, and the ability to apply the text depends on your knowledge of your church...