Book Review: The First and the Last: The Claims of Jesus Christ and the Claims of other Religious Traditions, George R. Sumner (Eerdmans 2004), 226 pp, US$26.00/£17.95 hbk; The Myth of Religious Superiority: A Multi-Faith Exploration, ed. Paul F. Knitter (Orbis Books 2005), 244 pp, US$30.00 pbk