Then one of the seven angels who had the seven bowls came and said to me, “Come, I will show you the judgment of the great whore who is seated on the many waters, with whom the kings of the earth have committed fornication, and with the wine of whose fornication, and with the wine of whose fornication the inhabitants of the earth have become drunk.”
From the footnotes: 1: The great whore, a symbol that builds both on the fact that cities were grammatically constructed as feminine and on the Hebrew prophets’ metaphorical references to cities and nations as brides, wives, or harlots. 2: Fornication, sexual misconduct applied metaphorically to the city’s international commercial and political dealings, which are judged illicit and unjust.
"The woman you saw is the great city that rules over the kings of the earth.
Revelation 18:3 (spoken by an “angel coming down from heaven having great authority”)
“For all the nations have drunk (or “She has made all nations drink”, per the footnotes)/of the wine of the wrath of her fornication,/and the kings of the earth have/committed fornication with her, and the merchants of the earth have/grown rich from the power of her luxury.”
Revelation 18:4 (spoken by “another voice from heaven”)
“Come out of her my people,/so that you do not take part in her sins,/and so that you do not share in her plagues”
Revelation 19:2 (spoken by “the loud voice of a great multitude in heaven”)
“He has judged the great whore/who corrupted the earth with her fornication,/and he has avenged on her the blood of his servants.”
Revelation 19:7 (spoken by the same multitude)
“Let us rejoice and exult/and give him the glory,/for the marriage of the Lamb has come,/and his bride has made herself ready.”
From the footnotes: His Bride, the new Jerusalem.
Source: The New Oxford Annotated Bible, Third Edition.
If Babylon is represented as a whore in chapter 17, and then a dead whore in chapter 19, and Jerusalem is represented as God’s new bride, how does this not fit into metaphorical adultery? The heavenly multitudes exhort everyone to cease fornicating with the city/leave her, and then the whore that is Babylon dies, and God gets a new city-bride.