Richard J. Foster is the author of several bestselling books, including Celebration of Discipline , Streams of Living Water , Life with God , and Prayer , which was Christianity Today 's Book of the Year and the winner of the Gold Medallion Award from the Evangelical Christian Publishers Association. He is the founder of Renovar�, an organization and a movement committed to the renewal of the church of Jesus Christ in all its multifaceted expressions, and the editor of The Life with God Bible .