At the end of his first epistle St. Peter writes: "Your sister church in Babylon, chosen together with you, sends you greetings; and so does my son mark" (1 Pet. 5:13). St. Peter used Babylon here as an early christian codeword for Rome.
St. John also uses the term Babylon in the book of Revelation six times in the same way:
"Then another angel, a second, followed, saying, Fallen, fallen is Babylon the great! She has made all nations drink of the wine of the wrath of her fornication" (v. 14:8)
"The great city was split into three parts, and the cities of the nations fell. God remembered great Babylon and gave her the wine cup of the fury of His wrath" (v. 16:9)
"...and on her forehead was written a name, a mystery: Babylon the great, mother of whores and of earth's abominations" (v. 17:5)
" He called out with a mighty voice, Fallen, fallen is Babylon the great" (v. 18:2)
"... they will stand far off, in fear of her torment, and say, Alas, alas, the great city, Babylon, the mighty city! For in one hour your judgement has come" (v. 18:10)
" With such violence Babylon the great city will be thrown down, and will be found no more" (v. 18:21)
Babylon in the book of Revelation can only refer to Rome as it was the only "great city" in the time of Christ and the Apostles. Babylon proper in Mesopotamia had, by 100 AD, been reduced to insignificance. Other extra-biblical works also refer to Rome as Babylon, such as the Sybylline Oracles (5:159ff), the Apocalypse of Baruch (2:1), and 4 Esdras (3:1).
Guys, Christ prayed that His church would be united. The only Church in the world that has not got multiple branches is the One Holy Catholic Apostolic Church, which can be traced right back to the time it was founded BY CHRIST through St. Peter, following his successors. This can't be argued. Maynard was right when he quoted that the gates of Hades will not prevail. It IS the only Church that has not been split, but has just had people leave (although many millions are coming back when they discover the fullness of Christ's truth in it). God bless!