One day soon, God is going to judge a place called "Babylon". His judgment will be sudden and extremely severe. So complete is His sentence upon this "great prostitute" that we are told she "shall not be found anymore" (Rev 18:4).

Before this judgment occurs, God issues a call for His people to abandon this place. They are instructed to flee out of her so that when the judgment comes, they will not suffer the terrible consequences along with the unrighteous.