This thesis will investigate three inter-connected questions. First, how are outsiders portrayed in the Abrahamic narratives? Secondly, is the portrayal of outsiders different between the different sources of Genesis, and, if so, what does the possible historical context of each source contribute to an understanding of why these differences exist? This in turn will contribute to the larger and third question: does the Documentary Hypothesis specifically, and diachronic analysis in general, have sufficient value for understanding the text as it now stands? It will be shown that while the Documentary Hypothesis involves some speculation, it offers a more coherent framework through which one can interpret and understand many of the complexities that arise in a reading of the Pentateuch. As such, diachronic analysis proves to be an invaluable tool for interpreting the final form of Genesis, if one is aware of its limitations.