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 has nearly six thousand regular Sunday attendees and has helped to start more than three hundred new churches around the world. He is the author of The Songs of Jesus, Prayer, Encounters with Jesus, Walking with God Through Pain and Suffering, and The Meaning of Marriage, among others, including the perennial bestsellers The Reason for God and The Prodigal God.
Katherine Leary Alsdorf worked twenty-five years in the high-tech industry as an economic analyst and in various executive leadership positions. After her CEO roles at One Touch Systems and Pensare, Redeemer Presbyterian Church recruited Katherine to lead the church’s efforts in marketplace ministry, now called the Center for Faith & Work, which has grown to serve more than two thousand people a year. Katherine has served on the boards of the International Arts Movement, the Fellowship for the Performing Arts, and the Theology of Work Project.