The grandeur of this historic sweep is the result of a careful and complex joining of several historic traditions, or sources. These are primarily four: the so-called Yahwist, Elohist, Priestly and Deuteronomic strands that run through the Pentateuch. Each brings to the Torah its own characteristics, its own theological viewpoint - a rich variety of interpretation that the sensitive reader will take pains to appreciate. A superficial difference between two of these sources is responsible for their names: the Yahwist prefers the name Yahweh (represented in translation asLord) by which God revealed himself to Israel; the Elohist prefers the generic name for God, Elohim. The Yahwist is concrete, imaginative, using many anthropomorphisms in its theological approach, as seen, e.g., in the narrative of creation in Genesis 2, compared with the Priestly version in Genesis 1. The Elohist is more sober, moralistic. The Priestly strand, which emphasizes genealogies, is more severely theological in tone. The Deuteronomic approach is characterized by the intense hortatory style of Deuteronomy 5-11, and by certain principles from which it works, such as the centralization of worship in the Jerusalem temple.
However, even this analysis of the Pentateuch is an over-simplification , for it is not always possible to distinguish with certainty among the various sources. The fact is that each of these individual traditions incorporates much older material. The Yahwist was himself a collector and adapter. His narrative is made up of many disparate stories that have been reoriented, and given a meaning within the context in which they now stand; e.g., the story of Abraham and Isaac in Gen 22. Within the J and P traditions one has to reckon with many individual units; these had their own history and life-setting before they were brought together into the present more or less connected narrative.
This is not to deny the role of Moses in the development of the Pentateuch. It is true we do not conceive of him as the author of the books in the modern sense. But there is no reason to doubt that, in the events described in these traditions, he had a uniquely important role, especially as lawgiver. Even the later laws which have been added in P and D are presented as a Mosaic heritage. Moses is the lawgiver par excellence, and all later legislation is conceived in his spirit, and therefore attributed to him. Hence, the reader is not held to undeviating literalness in interpreting the words, "the LORD said to Moses." One must keep in mind that the Pentateuch is the crystallization of Israel's age-old relationship with God.
In presenting the story of the birth of the People of God, the Pentateuch looks back to the promises made to the patriarchs, and forward to the continuing fulfillment of these promises in later books of the Bible. The promises find their classic expression in Genesis 12:1ff. The "God of the Fathers" challenges Abraham to believe: the patriarch is to receive a people, a land, and through him the nations will somehow be blessed.
The mysterious and tortuous way in which this people is brought into being is described: Despite Sarah's sterility, Isaac is finally born - to be offered in sacrifice! The promises are renewed to him eventually , and also to the devious Jacob, as if to show that the divine design will be effected, with or without...