Millions know him as a novelist and an Oxford Don, but C.S. Lewis's most lasting impact may be his role model as a Christian witness and evangelist. President of Wheaton College, Dr. Philip Ryken joins co-hosts Dr. Jim Beitler and Aaron Hill to explore C.S. Lewis's views about the witness of Scripture and what he can teach us about our own approach to Christian witness. How did Lewis approach Scripture, doctrine, and evangelism and how might that inform our own efforts to bear witness to the truth?