David Wilkerson went home to be with his Lord Jesus in 2011, but I'm sure if he were alive today, he would not have any problem recommending the following sermon:
Serious Preaching in a Comedy Culture, by Dr. David P. Murray
The text for this sermon is 1 Corinthians 5:10,11 (Audio):
If you're not familiar with his book, The Cross and the Switchblade, why don't you read it now? (Or watch the movie based on the book!)