This chapter has the details of how Abram's separation from Lot finally came about. God, at the first, had commanded Abram to leave "his kindred" and "his father's house," but, somehow, Abraham had never really done this. There was no way that a man like Lot could be a part of the Chosen People, and, in the events of this chapter, the occasion of their separation appears. We shall not waste much time exploring the opinion of scholars as to which fragments of this or that chapter belong to this or that alleged prior source. We consider Moses as the source (singular) of the entire Pentateuch. All of the scholars on earth today do not have a single line of solid evidence for all of the postulations about "J," "P," "E," "D," "RP," "Pr," "X," etc., etc. There really are no such "documents"; they exist solely in the imaginations of men. And they are as ephemeral, uncertain, untrustworthy, unbelievable, and preposterous as a fantastic dream. Not only have the source-splitters concocted four or five alleged "principal sources," but now they have split the splits, and split the split-splits, and then split them again. Richard E. Friedman, Assistant Professor of Hebrew and Comparative Literature at the University of California (San Diego) recently said, "There are 20 to 25 hands in the Five Books of Moses, I would say, counting all the authors and editors."
The significance of this is that the laws of probability are devastating to such postulations. If there are all that many ancient "documents," how is it that not one of them has ever been referred to on any clay tablet, or mentioned on any ancient monument, or referred to even once in any ancient writing? It becomes more and more certain that the source-splitters simply do not know what they are talking about! Besides, as the same review written by Patrick Young reported, Yehuda Radday of the Technion Institute of Technology reported that, "A five-year computer analysis of the writing style in Genesis makes it quite certain that ONLY ONE writer was involved."
Also, there is abundant evidence in Genesis itself of the unity, cohesion, and consistency of the whole book. This chapter is an example. Moses, the author, was still presenting the development of the covenant relationship between God and Abraham, and, in the events up to here, Abram had not yet left "his kindred and his father's house," and the perfect function of this chapter is to relate how that was finally achieved. The student should note that the renewal of the promises to Abraham took place immediately after Lot's departure toward Sodom, and that it was absolutely necessary that a logical and consistent account of the covenant should have provided exactly the information recorded here. We shall notice other proofs of unity in the text below.