Timothy J. Keller
He was the author of The New York Times bestselling books The Prodigal God: Recovering the Heart of the Christian Faith (2008), Prayer: Experiencing Awe and Intimacy with God (2014), and The Reason for God: Belief in an Age of Skepticism (2008). The prequel for the latter is Making Sense of GOD: An Invitation to the Skeptical (2016).