Revelation 17:5-9

5And on her forehead was written a name of mystery: "Babylon the great, mother of prostitutes and of earth's abominations."

6And I saw the woman, drunk with the blood of the saints, the blood of the martyrs of Jesus. When I saw her, I marveled greatly.

7But the angel said to me, "Why do you marvel? I will tell you the mystery of the woman, and of the beast with seven heads and ten horns that carries her.

8The beast that you saw was, and is not, and is about to rise from the bottomless pit and go to destruction. And the dwellers on earth whose names have not been written in the book of life from the foundation of the world will marvel to see the beast, because it was and is not and is to come.

9This calls for a mind with wisdom: the seven heads are seven mountains on which the woman is seated;