“Another point of connection with Mesopotamian traditions concerns the relationship between Genesis 6:1-4 and the flood story. Since Genesis 6:1-4 occurs immediately prior to the flood story, it is possible that the stories were more richly connected in other versions of these stories, whether oral or written.
One such possibility would be a version of the flood story in which the deeds and / or existence of the mixed breed demigods provoked God to destroy them in a great cataclysm–the flood. This possible story is not told in biblical or Mesopotamian texts of the flood, but an intriguing Greek text about the Trojan War (see below) raises the possibility of this combination of motifs.
In the versions of the flood recounted in Mesopotamian and biblical texts, the motives for the flood are several:
- Old Babylonian Atrahasis: the “noise” (rigmu) of overabundant humans makes it impossible for Enlil to sleep. The flood is an extreme and, as Enki points out, morally repugnant method of population reduction.
- Standard Babylonian Gilgamesh epic. Tablet XI and the flood tablet from Ugarit: the flood was sent for reasons impenetrable to humans: it is a “secret of the gods” (pirišta ša ili. XI.10).
- The J flood story of Genesis: the evil of the human heart makes Yahweh regret that he created humans, and so he resolves to destroy them with a flood (Genesis 6:5-7).
- The P flood story of Genesis: the violence of humans has corrupted the earth, and so God resolves to destroy them with a flood (Genesis 8:11-3).
None of these motives directly requires the existence of mixed-breed demigods or the sexual mingling of gods and humans. In its context as a prologue to the flood, Genesis 6:1-4 serves as one of several illustrations of human evil or corruption, but is not itself a necessary or sufficient cause of the flood.
But it is in the nature of oral and mythological traditions that stories and myths can be combined and recombined–this is what Claude Lévi-Strauss (The Savage Mind, Chicago, 1966, pp. 16-22) calls the “bricolage” of myth making, and what Albert Lord (Singer of Tales, 2d ed., Harvard university Press, 2000,) calls the multiformity of oral narrative traditions.
It is possible that the birth and proliferation of the demigods signified a kind of chaotic disruption of the cosmic order that required a global destruction. But to find an example of such a combination of motifs, we must turn from Mesopotamia to Greece.”
Ronald Hendel, “The Nephilim Were on the Earth: Genesis 6:1-4 and its Ancient Near Eastern Context,” in Christoph Auffarth and Loren T. Stuckenbruck, eds., The Fall of the Angels, Brill, 2004, pp. 29-30.