Timothy  Keller is an American author, speaker, and the founding pastor of Redeemer Presbyterian Church (PCA) in New York City, New York.   Timothy is the author of The Reason for God and The Prodigal God.

He was born and raised in Pennsylvania, and educated at Bucknell University, Gordon-Conwell Theological Seminary, and Westminster Theological Seminary. However, he learned the most from his nine years as a pastor of West Hopewell Presbyterian Church in the small blue-collar town of Hopewell, Virginia. The congregation there loved him, suffered through his earliest days as a pastor, and taught an intellectual northerner to be clear.  His second church was Redeemer Presbyterian Church in Manhattan, which he started in 1989 with his wife, Kathy, and three young sons.