Revelation 17:7 in the King James Version
And the angel said unto me, Wherefore didst thou marvel? I will tell thee the mystery of the woman, and of the beast that carrieth her, which hath the seven heads and ten horns.
Context
6 I saw the woman drunken with the blood of the saints and with the blood of the martyrs of Jesus. When I saw her, I wondered with great amazement.
7 The angel said to me, “Why do you wonder? I will tell you the mystery of the woman and of the beast that carries her, which has the seven heads and the ten horns.
8 The beast that you saw was, and is not; and is about to come up out of the abyss and to go into destruction. Those who dwell on the earth and whose names have not been written in the book of life from the foundation of the world will marvel when they see that the beast was, and is not, and shall be present.