Gregory Koukl is a radio talk show host, founder and president of Stand to Reason (www.str.org).

Greg started out thinking he was too smart to become a Christian and ended up giving his life for the defense of the Christian faith. A central theme of Greg's speaking and writing is that Christianity can compete in the marketplace of ideas when it's properly understood and properly articulated.

Greg's teaching has been featured on Focus on the Family radio, he’s been interviewed for CBN and the BBC, and did a one - hour national television debate with Deepak Chopra on Lee Strobel's "Faith Under Fire." Greg has been quoted in U.S. News & World Report, The Philadelphia Inquirer, and the L.A. Times. An award - winning writer, Greg is author of Relativism: Feet Firmly Planted in Mid - Air with Francis J. Beckwith, and Precious Unborn Human Persons. Greg has published more than 145 articles and has spoken on more than 40 university and college campuses both in the U.S. and abroad.

Greg received his Masters in Philosophy of Religion and Ethics at Talbot School of Theology, graduating with high honors, and his Masters in Christian Apologetics from Simon Greenleaf University. He is an adjunct professor in Christian apologetics at Biola University. He hosts his own radio talk show advocating clear - thinking Christianity and defending the Christian worldview.