Many believe Babylon is America but the Bible tells us it's Jerusalem.

Revelation 11:8 And their dead bodies will lie on the street of the great city which spiritually is called Sodom and Egypt, where also their Lord was crucified.

Jerusalem is the only city referred to symbolically in the Bible as Sodom see Deuteronomy 32:28-33; Isaiah 1:9-10; Jeremiah 23:14, and Ezekiel 16:46-57.

We know where the Lord was slain, Jerusalem.

Babylon was judged at the coming of the Lord, Old Covenant Jerusalem. (Matthew 24:3)

In Revelation 18:20, 24 the apostles and prophets rejoiced at the impending judgment of Babylon for her persecution of them. in Luke 13:33 A prophet cannot leave Jerusalem. Jesus said that the blood of all the prophets in history would fall upon Jerusalem in His own generation Matthew 23:29-39; Luke 11:49-53. In Revelation 18:24 Babylon could not refer to any other city in any other time period.

Babylon is described as being a harlot Revelation 17:1, 15; 19:2. Every time we read ISRAEL is disloyal to God, Babylon is referred as Her/ She. She is mentioned as a "harlot" or "adulterer" See also Ezekiel 16 She played harlot with the Egyptians and the Assyrians (Ezekiel 16:26, 28). Both Israel and Judah played the harlot with the idolatrous nations surrounding them Jeremiah 3:6-9.

She is described as being arrayed in purple and scarlet (Revelation 17:4). These were the colors of the clothing for the high priest and the colors that made the Temple more attractive. Exodus 28:5-6; 39:1-2.

Babylon of Revelation is the Old Covenant Jerusalem which was destroyed in AD 70.

Revelation is the judgment of Babylon. The first century Christians knew Babylon was in their geographical location. It would mean nothing to them if America, Russia, China or even Iraq, Iran etc. would be described as Babylon.

Mystery Babylon are those that killed the prophets, Jerusalem! (Matthew 23:27-38, Revelation 17:5, 18:24)

There are over 30 passages in the book of Revelation that it's fulfillment was about to happen. Revelation 1:1-3 and 22:6-20. Revelation is NOT about events of the 21st century. The events take place around the destruction of Jerusalem and the temple in AD 70. This is regarding Babylon.

Scarlet Woman
Revelation 17:3 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 here is NOT Rome as many think. She is riding on the Beast of Rome. The woman is actually Babylon the harlot from Jerusalem. She was in partnership with Rome until the Beast of Rome turned on her and destroys her.

Revelation 17:15-16 Then he said to me, “The waters which you saw, where the harlot sits, are peoples, multitudes, nations, and tongues. 16 And the ten horns which you saw on the beast (of Rome Nero), these will hate the harlot (Jerusalem), make her desolate and naked, eat her flesh and burn her with fire.

To prove this, Rome crushed Jerusalem and the temple in 70AD.