Kary Oberbrunner refers to himself as a "Recovering Pharisee." He founded Redeem the Day Ministries in 2004 and serves as the Pastor of Discipleship and Leadership Development at Grace Church in Powell, Ohio. Through his speaking, writing, coaching, and consulting, he invites others into a holistic relationship with Jesus Christ. Kary earned a a D. Min. in Transformational Leadership and an M. Div. in Counseling. He has spoken across the country in many settings including colleges, camps, and conferences. Kary has a heart for the local church and understands, from personal experience, the daily joys and struggles of vocational ministry. Kary has written several books and writes regularly for magazines on such subjects as holiness, Christian living, and cultural phenomena. Kary strives, in his delivery style, to use verbal and visual illustrations, that drive home advanced spiritual principles. He is a fresh voice of authenticity for this generation, calling others to live lives larger than themselves. Kary is married to his soul mate Kelly. They are blessed parents of Keegan and Isabel. In his free time he enjoys reading, the outdoors, and playing disc golf.

Gabe and Rebekah Lyons founded Fermi Project in 2003, a broad collective of innovators, social entrepreneurs, church and societal leaders working together to make positive contributions to culture. Gabe recently engineered Fermi Project's first book, unChristian, which reveals exclusive research on pop-culture's negative perception of Christians and convenes 27 of Christianity's most influential voices to address what he describes as "the steady erosion of Christianity's reputation in America." Gabe has been featured by CNN, The New York Times, Newsweek and USA Today representing the perspectives of a new generation of Christians. Prior to the Fermi Project, he co-founded Catalyst, a national gathering of young leaders, while serving as vice president for John Maxwell's INJOY organization. Gabe, Rebekah, and their three children reside in Atlanta, Georgia.

Dr. David Plaster is senior pastor of the Grace Brethren Church of Worthington, Ohio. Formerly he was professor of Theology and vice president for academic affairs at Grace Theological Seminary. He holds a Diploma from the University of Lyon, France; a BA from Grace College; an MDiv and ThM from Grace Theological Seminary; and a ThD in Systematic Theology from Dallas Theological Seminary. Dr. Plaster had previously served for twelve years in three different pastorates. He has taught college and seminary courses for approximately 19 years. He is also the author of two books and several journal articles.