Revelation 17:7-9

Darby Translation

⁷ And the angel said to me, Why hast thou wondered? *I* will tell thee the mystery of the woman, and of the beast which carries her, which has the seven heads and the ten horns.

⁸ The beast which thou sawest was, and is not, and is about to come up out of the abyss and go into destruction: and they who dwell on the earth, whose names are not written from the founding of the world in the book of life, shall wonder, seeing the beast, that it was, and is not, and shall be present.

⁹ Here is the mind that has wisdom: The seven heads are seven mountains, whereon the woman sits.