Titley examines two of Austin Farrer's major texts: his 1948 Bampton Lectures, published as The Glass of Vision, and his A Study in St Mark (1951). Austin Farrer has often been described as the one genius that the Church of England produced in the twentieth century. He wrote and spoke widely as a philosophical theologian, a biblical scholar and as a preacher. Farrer's philosophical work is read widely and some of his sermons are still in print, forty years after his death. His biblical writings, however, have been largely ignored, even at the time they were written. Robert Titley asks whether, in respect of his work on the Gospel of Mark, this neglect is justified. Titley's approach is from three angles, looking at Farrer on Mark as literature, as history, and as scripture. Farrer's reflections are far from simple, and they show that these apparently simple categories, 'Literature', 'History' and 'Scripture', are themselves in need of refinement if they are not to mislead.