From the Journal of the Western Mystery Tradition No 25, Vol. 3. Autumnal Equinox 2013 http://www.jwmt.org/v3n25/rivera.html
On the Origin of the World (Codex II) of the Nag Hammadi Library, is dominated by a compendium of influences including Manichean, Valentinian, Sethian, Ophite, Egyptian, Hermetic (Pagan Gnosis), Jewish apocalyptic apocrypha (Enoch and Jubilees), magic and astrology, and last but not least, and as the primary focus of this paper, the Orphic and Hellenistic mysteries. Yet, despite the variety of different influences, it still retains a particular Gnostic flavor—written persuasively as an academic essay, to not only attract potential adherents to the Gnostic religion but also to defend the Gnostic world-view in a distanced and factual manner. These references and allusions to other, non-Gnostic works, are employed to lend weight to the author’s message. Because of the juxtaposition of eclectic influences and even the citation of other texts, which are now lost to us, they seem to point to a school in Alexandria, Egypt as a place of origination……. cont’d at the link above.