R.C. Sproul: What Is the Gospel?
The Reformation was born as people sought to recover the biblical gospel, and in our own day there is a desperate need for men and women to return to the gospel found in Scripture. This meditation defines the gospel and exhorts us to stand fast for its truth.
This meditation is from our Reformation 500 Celebration: https://www.youtube.com/playlist?list=PL30acyfm60fVpoodP9VZY0Vd783pixWcC