Revelation 17:5-7

Young's Literal Translation

⁵ and upon her forehead was a name written: `Secret, Babylon the Great, the Mother of the Whores, and the Abominations of the earth.'

⁶ And I saw the woman drunken from the blood of the saints, and from the blood of the witnesses of Jesus, and I did wonder -- having seen her -- with great wonder;

⁷ and the messenger said to me, `Wherefore didst thou wonder? I -- I will tell thee the secret of the woman and of the beast that [is] carrying her, which hath the seven heads and the ten horns.