John the Apostle
Revelation 16:11BSB·traditional attribution

and curse the God of heaven for their pains and sores. Yet they did not repent of their deeds.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we see the work going on in the appointed order. The fourth angel poured out his vial, and that fell upon the sun; that is, say some, upon some eminent prince of the popish communion, who should renounce their false religion a little while before his utter downfall; and some expect it will be the German emperor. And now what will be the consequence of this?

Commenting on Revelation 16:8-11

John Gill Reformed Baptist @doctorgill

And the sixth angel poured his vial on the great river Euphrates,.... Which is not to be understood literally of the river Euphrates, which ran through Mesopotamia and Chaldea, and by the walls of Babylon; and of the drying of it up to make way for the Jews in the eastern parts of the world, to pass into their own land, and possess it; when...

Albert Barnes Presbyterian @notesbybarnes

Verse 11. And blasphemed the God of heaven. The same effect which it was said would be produced by the pouring out of the fourth vial, . Because of their pains and their sores. Of the calamities that had come upon them. And repented not of their deeds. . Compare .