The Book of Enoch is an ancient Jewish apocalyptic work traditionally attributed to Enoch, the great-grandfather of Noah. It is canonical only in the Ethiopian Orthodox Tewahedo Church and the Eritrean Orthodox Tewahedo Church. The original language was either Hebrew or Aramaic, and the only complete extant version is in Ge'ez. This translation by R.H. Charles (1917) remains the standard scholarly English translation. The book is pseudepigraphal and was highly influential on early Christian and Jewish mystical thought. It is not included in the Protestant, Catholic, or most Orthodox canons.
Enoch
Chapter 19
And Uriel said to me: 'Here shall stand the angels who have connected themselves with women, and their spirits, assuming many different forms, are defiling mankind, and shall lead them astray into sacrificing to demons "as gods", (here shall they stand), till "the day of" the great judgement in which they shall be judged till they are made an end of.
And the women also of the angels who went astray shall become sirens."
And I, Enoch, alone saw the vision, the ends of all things: and no man shall see as I have seen.