17 And the seventh poured out his bowl on the air; and there came out a great voice from the temple of the heaven, from the throne, saying, It is done. 18 And there were lightnings, and voices, and thunders; and there was a great earthquake, such as was not since men were upon the earth, such an earthquake, so great. 19 And the great city was [divided] into three parts; and the cities of the nations fell: and great Babylon was remembered before God to give her the cup of the wine of the fury of his wrath. 20 And every island fled, and mountains were not found; 21 and a great hail, as of a talent weight, comes down out of the heaven upon men; and men blasphemed God because of the plague of hail, for the plague of it is exceeding great.

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.