Revelation 17:7

and the angel said to me, wherefore didst thou marvel? I will tell thee the mystical meaning of the woman, and of the beast that carrieth her, which hath the seven heads and ten horns.

Revelation 17:1-6

Then there came one of the seven angels that had the seven vials, and talked with me, saying "come hither, I will explain to you the judgment of the great whore, that sitteth upon many waters:

Revelation 17:8

the beast that thou sawest, was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth, whose names were not written in the book of life from the foundation of the world, shall wonder when they behold the beast that was, and is not, but shall be.

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