Then I heard another voice from heaven saying, “Come out of her, my people, lest you take part in her sins, lest you share in her plagues; – Revelation 18:4 ESV
The 17th and 18th chapters of Revelation deal with the great prostitute, Babylon the Great. She is described in detail throughout these two chapters, yet who she actually is has been debated over the ages and is still unclear. Some have identified her with the literal cities of Rome or Jerusalem and some have identified her with the Roman Catholic church. Personally, I am partial to Augustine’s “Two Cities” view where Jerusalem and Babylon represent two spiritual realms that are at war with each other. Jerusalem represents those who love God while Babylon represents those who love this world and the pleasures that it has to offer.
Throughout this chapter we see judgement being executed against Babylon, along with a warning in this verse for God’s people to come out of her lest we take part in her sin and her judgement. We cannot have dual citizenship in the spiritual realm. If we would belong to Jerusalem, we need to abandon citizenship in Babylon and come out from her.
Do not love the world or the things in the world. If anyone loves the world, the love of the Father is not in him. For all that is in the world—the desires of the flesh and the desires of the eyes and pride of life—is not from the Father but is from the world. And the world is passing away along with its desires, but whoever does the will of God abides forever. – 1 John 2:15-17 ESV