Yet it is clear from the book of Genesis alone that in the age of Priestly writers and compilers there were other phases of thought.
The story of the Creation in the book of Genesis is shown, from the point of view of chronology, to be a poetic or symbolic account by the discovery of civilizations of much greater antiguity.
As the chronicler rewrote the history of Israel and Judah from the basis of the Priests' Code, so our author re-edited from the Pharisaic standpoint of his time the book of Genesis and the early chapters of Exodus.
Also, from P alone it would have been equally impossible to recover the non-priestly forms. But while there is no immeasurable gulf between the canonical book of Genesis and Jubilees, the internal study of the former reveals traces of earlier traditions most profoundly different as regards thought and contents.
His life as narrated in the book of Genesis reflects the traditions of different ages.