17 The seventh angel poured his bowl into the air, and a loud voice came out of the temple, from the throne, saying, "It is done!" 18 And there came flashes of lightning, rumblings, peals of thunder, and a violent earthquake, such as had not occurred since people were upon the earth, so violent was that earthquake. 19 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. 20 And every island fled away, and no mountains were to be found; 21 and huge hailstones, each weighing about a hundred pounds, dropped from heaven on people, until they cursed God for the plague of the hail, so fearful was that plague.

Matthew Henry's Commentary on Revelation 16:17-21

Commentary on Revelation 16:17-21

(Read Revelation 16:17-21)

The seventh and last angel poured forth his vial, and the downfal of Babylon was finished. The church triumphant in heaven saw it and rejoiced; the church in conflict on earth saw it and became triumphant. God remembered the great and wicked city; though for some time he seemed to have forgotten her idolatry and cruelty. All that was most secure was carried away by the ruin. Men blasphemed: the greatest judgments that can befal men, will not bring to repentance without the grace of God. To be hardened against God, by his righteous judgments, is a certain token of sure and utter destruction.