In preparation, I strongly encourage you to listen to the following sermon by John Piper on Romans 8:10-17 called How to Fight Sin, Part 2. The money quote is:
I hear so many Christians murmuring about their imperfections and their failures and their addictions and their short-comings, And I see so little war! ‘Murmur, murmur, murmur… Why am I this way?’ MAKE WAR!”
Listen to the sermon here.
This sermon and the quote above inspired one Christian rapper to write a song simply titled "Make War." Here's the video.
Sermon - December 20., 2009 - Worship the King: The Folly of Misplaced Allegiance
Sermon - November 22, 2009 - Self-Control in the Face of Temptation
GBC - Still Surviving The Storm
More on Piper:
GBC - Repost | "A Sweet & Bitter Providence" by John Piper
GBC - Repost | The Critical Question For Our Generation: Piper on Heaven & the Satisfying Presence of Christ
GBC - Bloodlines: A Documentary About Racism
GBC - The Gospel Animated