(Psalms 137:8-9) "O daughter of Babylon, who art to be destroyed; happy shall he be, that rewardeth thee as thou hast served us. {9} Happy shall he be, that taketh and dasheth thy little ones against the stones."
The harlot of Babylon is going to suffer mightly indeed.. But the ones who destroy her will only have a hour of gladness..
(Revelation 17:16) "And the ten horns which thou sawest upon the beast, these shall hate the whore, and shall make her desolate and naked, and shall eat her flesh, and burn her with fire."