Book of the Giants 1
1
And it came to pass when the sons of men had multiplied, in those days beautiful and comely daughters were born to them.
2
And the Watchers, the sons of heaven, saw them and desired them. And they said to one another: Come, let us choose for ourselves wives from among the daughters of men, and let us beget for ourselves children.
3
And Shemihazah, who was their leader, said to them: I fear that you will not agree to do this deed, and I alone shall be guilty of a great sin.
4
And they all answered him and said: Let us all swear an oath and bind one another by curses not to alter this plan but to carry it out effectively.
5
Then they all swore together and bound one another by curses. And they were altogether two hundred who descended in the days of Jared on the summit of Mount Hermon.