The Reason for God: this book has been written for believers and non-believers, sceptics and churchgoers, and charts a brilliantly considered and impassioned path to Christianity - a Mere Christianity for the twenty-first century.Making Sense of God: a prequel to Keller's A Reason for God: a thoughtful look at the role faith and religion can play in modern lives. The Prodigal God: focused on Jesus' best-known parable - the prodigal son - as a paradigm for the central messages of Christianity: grace, hope and salvation.