Greg Koukl helps Christian defend the Bible in conversation with their unbelieving friends and neighbors.

Greg Koukl is an esteemed apologist, Summit faculty, and the founder and president of Stand to Reason. He's the author of Tactics and co-author of Relativism: Feet Firmly Planted in Mid-Air with Francis J. Beckwith. He’s hosted his own radio talk show for over 25 years advocating clear-thinking Christianity and defending the Christian worldview. Learn more at STR.org.