Revelation 18:20 Rejoice over her, thou heaven, and ye holy apostles and prophets; for God hath avenged you on her.
21 And a mighty angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be thrown down, and shall be found no more at all.
22 And the voice of harpers, and musicians, and of pipers, and trumpeters, shall be heard no more at all in thee; and no craftsman, of whatsoever craft he be, shall be found any more in thee; and the sound of a millstone shall be heard no more at all in thee;
23 And the light of a candle shall shine no more at all in thee; and the voice of the bridegroom and of the bride shall be heard no more at all in thee: for thy merchants were the great men of the earth; for by thy sorceries were all nations deceived.
24 And in her was found the blood of prophets, and of saints, and of all that were slain upon the earth.
Verse 20 now tells all that have died or been taken in Christ name can rejoice because God has taken His vengeance on Satan and his demons and followers. As the scripture goes on we see another angel take a great milestone and cast it into the sea to destroy once and for all the Babylon and the the commercial and governmental systems. All things that were done by the people that followed the Antichrist will be no more. Even the ones that were the greatest, even the the great deceivers will be no more. Because of the religious system and the governmental and economic system of the whole seven years prophets and saints were slain, even all the way back to the first Babylon that existed was their blood found.Now we are at the the point where when the angel in chapter 16 said “IT IS DONE” that God’s people are avenged for the torment and death they have been through.