Thou seest what Azâzêl hath done, who hath taught all unrighteousness on earth and revealed the eternal secrets which were preserved in heaven, which men were striving to learn: And Semjâzâ, to whom Thou hast given authority to bear rule over his associates. And they have gone to the daughters of men upon the earth, and have slept with the women, and have defiled themselves, and revealed to them all kinds of sins. And the women have borne giants, and the whole earth has thereby been filled...
Enoch 9:6–9