"Regardless of the fact that the express purpose of God's Deluge is to kill off most of mankind--apart, of course, from Noah and his descendants--there is talk of the need to: 'heal the earth which the angels have corrupted ... that all the children of men may not perish through all the secret things which the Watchers have disclosed and have taught their sons.' [...] From such admonishments we may reasonably deduce a number of things about the Watchers, most particularly that they must be about the right size and shape, and equipped, moreover, with the necessary organs and impulses to want, to have and to enjoy sex with human women. To me, the obvious conclusion from this is that the Watchers are in fact human, or at any rate extremely closely related at the genetic level to anatomically modern human beings--close enough, indeed, to make human women pregnant and to have "children of fornication" with them. These offspring are not sickly as one might expect from an even slightly mismatched genetic makeup. On the contrary, they thrive so vigorously that Enoch, or the "good" angels speaking through him, want not only to destroy the Watchers but also to 'destroy the children of the Watchers.' [...] So now further clarity begins to emerge. A group of bad angels, "Watchers of the heaven," have come to earth--"descended," specifically, on Mount Hermon in Lebanon--transferred some technology, mated with human females, and produced offspring who are in some way gigantic and are called Nephilim."