I do think that the Josianic return to the archaic form of the Passover is appropriate and, indeed, historical. Josiah does go back to a different, earlier tradition, the time of a central sanctuary in which the law code was read. But then there were accretions to the Book of Deuteronomy.
Frank Moore CrossThere are surely many legitimate approaches to Biblical literature, and I think that it depends very much on one's experience and temperament which way one deals primarily with Biblical material.
Frank Moore Cross