On an afternoon 2,000 years ago, a couple of friends were walking from Jerusalem to Emmaus. A very ordinary-looking man joined them and asked what they were talking about. This was a strange question as one event had dominated most people's conversations that weekend: the execution of Jesus of Nazareth. However, the ordinary-looking man was not as clueless as they first thought... "beginning with Moses and all the Prophets, he explained to...