Timothy Keller started Redeemer Presbyterian Church in New York City with his wife, Kathy, and their three sons. Dr. Keller also founded Redeemer City to City, which has trained leaders to start more than three hundred new churches in nearly fifty cities around the world. He is the author of
The Prodigal Prophet, God's Wisdom for Navigating Life, and
The Reason for God, among others.
Kathy Keller received her MA in theological studies at Gordon-Conwell Theological Seminary. Kathy cowrote
The Meaning of Marriage, The Songs of Jesus, God's Wisdom for Navigating Life, and
The Meaning of Marriage: A Couple's Devotional with Tim.
On Marriage is their fifth collaboration.