If you haven’t had a chance to check out the 2015 Desiring God Conference for Pastors, do so. There was an excellent assortment of speakers and messages.
The topic was sin. They titled the conference: Where Sin Increased: The Rebellion of Man and the Abundance of Grace.
Here are a few that stood out to me:
“What is Sin? The Essence and Root of all Sinning,” by John Piper
“Make War: The Pastor and His People in the Battle Against Sin,” by John Piper
“O, That Day, When Freed From Sin,” by Sam Storms
You can find the rest of the messages here.