Book of Enoch (see Part I, Chapters 6-10)
"And the angels, the children of the heaven, saw and lusted after them, and
said to one another: 'Come, let us choose us wives from among the children
of men and beget us children.'"
Book of Jubilees (see Chapter 5)
"And lawlessness increased on the earth and
all flesh corrupted its way, alike men and cattle and beasts and birds and
everything that walks on the
earth - all of them corrupted their ways and their orders, and they began to
devour each other."
From the "Book of Giants," part of the
Dead Sea Scrolls
"Thereupon Ohya [said] to Hahya [...] Then he answered, It is not for us,
but for Azazel, for he did [...the children of] angels are the giants, and
they would not let all their [loved ones] be neglected [...we hav] not been
Qumran Library, which contains portions of the Dead Sea Scrolls
"[they began to cohabit with them and to defile themselves with them]; and
to teach them sorcery and [spells and the cutting of roots; and to acquaint
them with herbs.]"