Revelation 16:9

God, which] RV 'the God which.' 10f. The fifth bowl is poured in judgment upon the city of Rome, the seat of empire. The heathen world governed by Rome becomes full of the darkness of terror and rebellion at God's judgments. This is parallel to the spiritual torments threatened at the fifth trumpet: cp. Revelation 9:1. It is in contrast to the fifth seal (cp. Revelation 6:9.), where the martyrs, who have suffered, call on God, while here the subjects of the beast blaspheme God because of their pains.