Revelation 16:4 - Joseph Benson’s Commentary on the Old and New Testaments

And the third angel poured out his vial upon the rivers a fountains of waters, &c. Or those territories of the Papacy which were as necessary to it as rivers and fountains are to a country: the kind of plague under this vial being the same as that of the former. For, as the former destroyed the living creatures, or living souls, that were in or upon the sea, namely, the Spaniards, the great mariners of the world at that time, as to their maritime power, who after the year 1588 lost their former sovereignty of the seas, it being transferred to the English and Dutch; so this latter plague makes it difficult for the Popish party to subsist and maintain their ground, even in the inland countries, particularly in the several dominions of Germany and the neighbouring countries. For in the year 1617, Ferdinand being forced upon the Bohemians by the Emperor Matthias, and crowned king, the foundation of new quarrels was thus laid. For, a little while after, another most bloody religious war ensued, which shook all the empire, and excited the terror of all Europe. And, though the Protestants lost Bohemia, the Palatinate in part, and were driven out of Moravia, Austria, and Silesia, at this time, and were not only persecuted in many places, but were in danger of being extirpated and rooted out universally; yet the tide turned all on a sudden. For after the emperor had ruled Germany with a veteran army for a considerable time, Gustavus Adolphus entered it in the year 1630, and conquered everywhere. And though he was killed about two years afterward, yet his army continued to be victorious; until at length all things were settled at the peace of Munster, A.D. 1648; with which therefore the period of this vial, consisting of thirty- one years, must be supposed to end. Now, as this began with persecutions against, and cruelties upon the Protestants; so at length the angel of the waters is heard to give thanks to God for causing the enemies of his people at last to drink of their own blood. To which song of praise another angel says, Amen: all which seems to denote the joy of the Protestant states and churches on the success of the Swedish arms against the emperor.