It was the famous Wellhausen hypothesis, elaborated and defended in his classic 'Prolegomena to the History of Ancient Israel', which more than any other single work of the mind revolutionized the critical understanding of the Hebrew Bible. Prior to the appearance of Wellhausen, the theory proposed by Graf had been all but neglected. In it Graf had argued that the Levitical Law and related sections of the Pentateuch were not written until the fall...