Kerby Anderson is host of Point of View Radio Talk Show and also serves as the President of Probe Ministries. He holds masters degrees from Yale University (science) and Georgetown University (governm...

Timothy Keller was born and raised in Pennsylvania and educated at Bucknell University, Gordon-Conwell Theological Seminary, and Westminster Theological Seminary. His first pastorate was in Hopewell,...

Timothy Keller was born and raised in Pennsylvania and educated at Bucknell University, Gordon-Conwell Theological Seminary, and Westminster Theological Seminary. His first pastorate was in Hopewell, Virginia. In 1989 he started Redeemer Presbyterian Church in New York City with his wife, Kathy, and their three sons. Today, Redeemer is a movement of collegial churches and Tim is teaching and mentoring the next generation of urban church planters for New York City and the world with Redeemer City to City. He is the author of Hidden Christmas, Making Sense of God, and The Songs of Jesus, as well as The Meaning of Marriage, The Prodigal God, The Reason for God, among others.

George Barna is a professor at Arizona Christian University and Director of Research at the Cultural Research Center at Arizona Christian University, focusing on worldview assessment and development,...

George Barna is a professor at Arizona Christian University and Director of Research at the Cultural Research Center at Arizona Christian University, focusing on worldview assessment and development, and cultural transformation. He is also the Senior Research Fellow at Family Research Council’s Center for Biblical Worldview. He was the founder of The Barna Group (which he sold in 2009), the Barna Institute, the American Culture and Faith Institute, and Metaformation. Through these entities, he has conducted groundbreaking research on worldview, cultural transformation, ministry applications, spiritual development, and politics. He has provided research and strategy for several hundred parachurch ministries, thousands of Christian churches, the U.S. military and Fortune 500 companies. Having begun his research career in the political arena, he has provided polling for numerous political campaigns and has provided polling and strategy to four presidential candidates. He has also served on multiple boards of directors and advisory boards. Raising Spiritual Champions is the 60th book that Barna has authored or co-authored. His books have addressed social and religious trends, worldview, leadership, spiritual development, church dynamics, and cultural transformation. They include New York Times and Amazon bestsellers and several award-winning books. His books have been translated into more than a dozen foreign languages. He is a frequent speaker at events throughout the world, having spoken at more than a thousand events during the course of his career, including events in 14 different countries.Prior to joining the faculty of ACU, Barna taught at several universities and seminaries, served as the teaching pastor of a large, multi-ethnic church, pastored a house church, and helped to start several churches. He has also served as an elder in several congregations. After graduating summa cum laude from Boston College, Barna earned two master’s degrees from Rutgers University and received a doctorate from Dallas Baptist University. Barna and his wife, Nancy, attended high school, college, and graduate school together before marrying in the Princeton University Chapel in 1978. They have three adopted daughters and three grandchildren, and currently live on the central California coast and in the Phoenix area. He enjoys spending time with his grandchildren, relaxing at the beach or on a cruise, watching the NY Yankees, playing bass guitar and listening to the blues, hanging out with his blind dog, Ray Charles, visiting comedy clubs or watching comedy specials, and reading novels.