Pastor Andy Davis preached an expository sermon on Mark 

-23 on the issue of human heart defilement and that only through faith in Christ it can be healed.

Acts Podcast 41: To Jerusalem! Part 1

This Podcast from Two Journeys Ministry includes sermons, lectures, and classes from Dr. Andrew M. Davis, the senior pastor of the First Baptist Church of Durham. 

Two Journeys exists to help Christians make progress in the two journeys of the Christian life, the internal journey of sanctification and the external journey of gospel advancement. We do this by exporting biblical teaching for the good of Christ’s Church and for the glory of God.