So he carried me away in the Spirit into the wilderness. And I saw a woman sitting on a scarlet beast which was full of names of blasphemy, having seven heads and ten horns.
The woman was arrayed in purple and scarlet, and adorned with gold and precious stones and pearls, having in her hand a golden cup full of abominations and the filthiness of her fornication.
And on her forehead a name was written: MYSTERY, BABYLON THE GREAT, THE MOTHER OF HARLOTS AND OF THE ABOMINATIONS OF THE EARTH.
Rev 17:15
Then he said to me, "The waters which you saw, where the harlot sits, are peoples, multitudes, nations, and tongues.
The harlot is Babylon which represents the world's commerce/political system. She is adorned with what rightfully should be on the Bride - the New Jerusalem, foreshadowed by the Church. We are to redeem every tongue,tribe and nation from the corruptions of babylon.
Rev 21:2
Then I, John, saw the holy city, New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband.
(NKJ)