The Great Harlot (also called Mystery Babylon The Great or the Whore Of Babylon), as mentioned in Revelation chapter 17, refers to the "great city which reigns over the kings of the earth", which in the Left Behind books refers to New Babylon in Iraq. Some Bible eschatology students also interpret this woman as being the one-world "anti-church" of Satan, which in the Left Behind books refers to Enigma Babylon One World Faith. And then another voice in heaven calls out, saying: "Come out of her, my people, lest you share in her sins, and lest you receive of her plagues." (Rev 18:4)