David Kinneman and Mark Matlock

David Kinnaman has authored several books, including unChristian, You Lost Me, and Good Faith. He is president of Barna Group, a leading research company based in Ventura, California, and Atlanta, Georgia. David’s work as a researcher and “professional listener” has led his team to interview nearly 1.5 million individuals since he began working for Barna as an intern in 1995.

Mark Matlock has been working with youth pastors, students, and parents for more than two decades, and he’s spoken live to more than 1 million teenagers. He is the principal at WisdomWorks, a consulting firm that helps Christian leaders leverage the transforming power of wisdom to accomplish their mission. Mark is the former executive director for Youth Specialities and creator of the PlanetWisdom student conferences.

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