http://www.sacred-texts.com/bib/boe/CHAPTER VII.
1. And all the others together with them took unto themselves wives, and each chose for himself one, and they began to go in unto them and to defile themselves with them, and they taught them charms and enchantments, and the cutting of roots, and made them acquainted with plants. 2. And they became pregnant, and they bare great giants, whose height was three thousand ells: 3. Who consumed all the acquisitions of men. And when men could no longer sustain them, 4. the giants turned against them and devoured mankind. 5. And they began to sin against birds, and beasts, and reptiles, and fish, and to devour one another's flesh, and drink the blood. 6. Then the earth laid accusation against the lawless ones.The height of the giants in this is crazy. I can't take that seriously, it's either an exaggerating book or there is some ancient idiom at play that it would take more research than I can do right now to discern.
But since the basic idea is found in other texts and even in other cultures (sumerians) I tend to take that seriously, if no one could tell...:p.
Additionally, this describes a possible source for some vampirism perhaps even therianism?
...1. And Azâzêl taught men to make swords, and knives, and shields, and breastplates, and made known to them the metals 〈of the earth〉 and the art of working them, and bracelets, and ornaments, and the use of antimony, and the beautifying of the eyelids, and all kinds of costly stones, and all colouring tinctures. 2. And there arose much godlessness, and they committed fornication, and they were led astray, and became corrupt in all their ways. Semjâzâ taught enchantments, and root-cuttings, Armârôs the resolving of enchantments, Barâqîjâl,
p. 36
[paragraph continues] (taught) astrology, Kôkabêl the constellations, Ezêqêêl the knowledge of the clouds, 〈Araqiêl the signs of the earth, Shamsiêl the signs of the sun〉, and Sariêl the course of the moon. And as men perished, they cried, and their cry went up to heaven . . .Parallel...
The Treasures of the Danaans
Tuan mac Carell says they came to Ireland "out of heaven." This is embroidered in later tradition into a narrative telling how they sprang from four great cities, whose very names breathe of fairydom and romance - Falias, Gorias, Finias, and Murias. Here they learned science and craftsmanship from great sages one of whom was enthroned in each city.....The Angels taught their children, and this went to their children's children etc....IMO.
...And to Gabriel said the Lord: 'Proceed against the bastards and the reprobates, and against the children of fornication: and destroy [the children of fornication and] the children of the Watchers from amongst men [and cause them to go forth]: send them one against the other that they may destroy each other in battle: for length of days shall they not have....5. And from henceforth you shall not ascend into heaven unto all eternity, and ⌈in bonds⌉ of the earth the decree has gone forth to bind you for all the days of the world. 6. And (that) previously you shall have seen the destruction of your beloved sons and ye shall have no pleasure in them, but they shall fall before you by the sword....The Dannan arrive in Erin and battle the Fir Bolg. The Fomorians follow the Dannan to Erin. They battel, along with some Sidhe (according to oneversion), Balor (a giant?) is slain. The Dannan are driven from Erin, in battle, by men. IMO, the words given to Enoch seem to come true.
Yet, the Watchers had to remain on earth long enough to see this all occur. How long did it take? What did the watchers do during that time? think this could explain a lot.
....8. And now, the giants, who are produced from the spirits and flesh, shall be called evil spirits upon the earth, and on the earth shall be their dwelling. 9. Evil spirits have proceeded from their bodies; because they are born from men, ⌈⌈and⌉⌉ from the holy Watchers is their beginning and primal origin; ⌈they shall be evil spirits on earth, and⌉ evil spirits shall they be called. [10. As for the spirits of heaven, in heaven shall be their dwelling, but as for the spirits of the earth which were born upon the earth, on the earth shall be their dwelling.] 11. And the spirits of the giants afflict, oppress, destroy, attack, do battle, and work destruction on the earth, and cause trouble: they take no food, ⌈but nevertheless hunger⌉ and thirst, and cause offences. And these spirits shall rise up against the children of men and against the women, because they have proceeded ⌈from them⌉.The Shedim of Sheol. Some scholars would prefer it read "in the earth" as the dwelling, meaning they seem to be able to come and go from Sheol. This explains a lot for me too, though it is a tangent. Here, IMO, I find the explanation for the seemingly pointless and destructive "demonic" activity I have seen in my life. I say this because i would expect a fallen angel to be more sophisticated, to have more of an agenda...and I think they do. Thus I think the other inane crap comes from these other things. Back to the main topic line though...
...2. And the women also of the angels who went astray shall become sirens.'Wha?????
There's a lot in this apocryphal text that jumps at me. I wonder what manner of angels transgressed in this way. Different types? it doesn't say. perhaps some seraphim? I wonder because fiery serpents with wings is some draconic imagery, or at least could parallel that idea.