At the inaugural Together for the Gospel in 2006 John Piper preached on “Why Expositional Preaching is Particularly Glorifying to God.”

You may not have time to listen or watch the whole thing, but you should at least check out the first fifteen minutes. I do believe you will be helped. There Piper elaborates on his longing to see God raise up preachers “mighty in the Scriptures, aglow with the great truths of the doctrines of grace, dead to self, willing to labor and suffer, indifferent to the accolades of man, broken for sin, and dominated by a sense of the greatness, the majesty, and holiness of God.” Let us all long and pray for the same thing.

Click here if you want to read the manuscript.