Revelation 17:7-11

7And the angel said unto me, Wherefore didst thou wonder? I will tell thee the mystery of the woman, and of the beast that carrieth her, which hath the seven heads and the ten horns.

8The beast that thou sawest was, and is not; and is about to come up out of the abyss, and to go into perdition. And they that dwell on the earth shall wonder, they whose name hath not been written in the book of life from the foundation of the world, when they behold the beast, how that he was, and is not, and shall come.

9Here is the mind that hath wisdom. The seven heads are seven mountains, on which the woman sitteth:

10and they are seven kings; the five are fallen, the one is, the other is not yet come; and when he cometh, he must continue a little while.

11And the beast that was, and is not, is himself also an eighth, and is of the seven; and he goeth into perdition.