The fourth in a series of Gifford Lectures by Prof Diana Eck. Recorded 4 May 2009 at The University of Edinburgh. Religious diversity poses questions that are not only global, national, and civic, but also theological. In 1910, the World Conference on Mission convened in Edinburgh and addressed the world's religions from the standpoint of Christian missions. Today, as people encounter neighbors of other faiths, face to face, and as communications enable people of every faith to know those of other faiths, what new theological questions do we and others pose about our own faith? How is the "truth" of each tradition challenged in the face of other faiths and truth claims? Judaism, Christianity, and Islam are increasingly referred to as the "Abrahamic" faiths, indicating a common prophetic ancestor in the figure of Abraham. Abrahamic dialogue is on the rise. What assessment do we have of these dialogues?