What to an ancient historian is most surprising in the basic assumptions of form-criticism of the extremer sort, is the presumed tempo of the development of the didactic myths – if one may use that term to sum up the matter. We are not unacquainted with this type of writing in ancient historiography, as will shortly appear. The agnostic type of form-criticism would be much more credible if the compilation of the Gospels were much later in time, much more remote from the events themselves, than can be the case. Certainly a deal of distortion can affect a story that is given literary form a generation or two after the event, whether for national glorification or political spite, or for the didactic or symbolic exposition of ideas. But in the material of ancient history the historical content is not hopelessly lost.

Herodotus particularly comes to mind. In his history, written in mid-fifth century B.C., we have a fund of comparable material in the tales of the period of the Persian Wars and. the preceding generation. These are retold by Herodotus from forty to seventy years later, after they had been remodelled by at least one generation of oral transmission. The parallel with the authors of the Gospels is by no means so far-fetched as it might seem. Both regard their material with enthusiasm rather than detached criticism. Both are the first to produce a written narrative of great events which they regard as a mighty saga, national or ecclesiastical and esoterical as the case may be. For both their story is the vehicle of a moral or a religious idea which shapes the narrative. For Herodotus the classical concept of ‘koros-hubris-até’ is no less basically influential than the notion of, for example, oblation in the pattern of the Gospels, affecting both the parts and the whole of the narrative. Yet the material of Herodotus presents no intractable difficulty to a critical historian. The material has not been transformed out of all recognition under the influence of moral and patriotic fervour, in a period of time as long, if not longer, than can be allowed for the gestation of the form-myths of the synoptic gospels.

Herodotus enables us to test the tempo of mythmaking, and the tests suggest that even two generations are too short a span to allow the mythical tendency to prevail over the hard historic core of the oral tradition. A revealing example is provided by the story of the murder of the Athenian tyrant Hipparchus at the hands of Harmodius and Aristogeiton, who became the pattern of all tyrannicides. The true story was that they assassinated Hipparchus in 514 B.C., but the tyranny lasted another four years before the establishment of the Athenian democracy. Popular opinion created a myth to the effect that Harmodius and Aristogeiton destroyed the tyranny and freed Athens. This was current in the mid-fifth century. Yet Herodotus, writing at that time, and generally taking the popular view of the establishment of the democracy, gives the true version and not the myth about the death of Hipparchus. A generation later the more critical Thucydides was able to uncover a detailed account of exactly what happened on the fatal day in 514 B.C. It would have been natural and easy for Herodotus to give the mythical version. He does not do so because he had a particular interest in a greater figure than Harmodius or Aristogeiton, that is, Cleisthenes, the central person in the establishment of the democracy.

All this suggests that, however strong the myth-forming tendency, the falsification does not automatically and absolutely prevail even with a writer like Herodotus, who was naturally predisposed in favour of certain political myths, and whose ethical and literary interests were stronger than his critical faculty. The Thucydidean version is a salutary warning that even a century after a major event it is possible in a relatively small or closed community for a determined inquirer to establish a remarkably detailed account of a major event, by inquiry within the inner circle of the descendants of those concerned with the event itself. Not that one imagines that the authors of the Gospels set to work precisely like either Herodotus or Thucydides. But it can be maintained that those who had a passionate interest in the story of Christ, even if their interest in events was parabolical and didactic rather than historical, would not be led by that very fact to pervert and utterly destroy the historical kernel of their material. It can also be suggested that it would be no harder for the Disciples and their immediate successors to uncover detailed narratives of the actions and sayings of Christ within their closed community, than it was for Herodotus and Thucydides to establish the story of the great events of 520-480 B.C. For this purpose it matters little whether you accept the attribution of the Gospels to eyewitnesses or not.