Revelation 14:8

And another, a second angel, followed, saying, "It fell, it fell, Babylon the Great, that has made all the nations drink of the wine of the wrath of her fornication!"

Revelation 18:2

And he cried with a mighty voice, saying, "Babylon the great fell, fell, and became a habitation of demons, and a hold of every unclean spirit, and a hold of every unclean and hateful bird;

Revelation 18:8-11

Therefore, in one day shall come her plagues, death and mourning and famine; and she shall be burned up with fire; because strong is the Lord God who judged her.

Revelation 18:17-19

because in one hour so great wealth was made desolate!' And every ship-master, and every one sailing to any place, and mariners, and as many as do business at sea, stood afar off;

Treasury of Scripture Knowledge

Summary

Babylon is suddenly fallen and destroyed: howl for her; take balm for her pain, if so be she may be healed.

Bible References

Suddenly

Revelation 14:8
And another, a second angel, followed, saying, "It fell, it fell, Babylon the Great, that has made all the nations drink of the wine of the wrath of her fornication!"
Revelation 18:2
And he cried with a mighty voice, saying, "Babylon the great fell, fell, and became a habitation of demons, and a hold of every unclean spirit, and a hold of every unclean and hateful bird;