You can now read online John Piper's Preaching as Expository Exultation for the Glory of God--delivered at the Together for the Gospel Conference. His opening words provide an overview of the message:
"There are four parts to this message. First, I will reflect on the kind of preaching that I long to see God raise up in our day—the kind that is shaped by the weight of the glory of God. Second, I will try to portray the glory of God which affects preaching this way. Third, I will offer my biblical understanding of how people waken to this glory and are changed by it. Finally, I will explain how all of this calls for a kind of preaching that I call expository exultation."