Mark Thompson writes a great post on expository preaching. Clearly preacher like Driscoll and Keller are in view, with their tendency to sometimes use their text as a trampoline.
I reckon his comments are very good, although I would want to argue that there is a place to integrate other theological disciplines into the exposition, as long as the sermon overall remains tied to the text.
I also fear that some champions of expository preaching can confuse or conflate it with exegesis-preaching, where the entire structure and drama of the sermon is based around exegetical questions, methods, scaffolding. Exegesis-preaching can end up making hearing God's Word secondary and 'learning how to read the Bible for yourself' primary.
A call back to expository preaching
