(4) And the third angel . . .--The third vial resembles the second in its effects. As it is poured out on the rivers and springs of waters, they become blood. It is not only the great sea which becomes blood, but all the merry streams and babbling brooks which carry their tribute of water seawards also turn corrupt. And this plague is acknowledged by heavenly voices as a just retribution (Revelation 16:5-7). The streams and rivers feed the sea; they are the powers and influences which go to the making up of the great popular sentiment; these are smitten by the same corruption. Men cannot worship worldliness or earthliness without degrading even those who contribute to their instruction, their recreations, and their joys, to the same level. When the public taste grows corrupt, the literature will, for example, become so in a more or less degree; the up-flowing tide will colour the down-coming stream. "The morality of a nation's art," writes a modern critic. "always rises to the level of morality in a nation's manners. Morality takes care of itself, and always revenges any outrage which art may put upon its laws by either lowering the art that so offends, or extinguishing it" (Dallas, Gay Science, Vol. II., 16). It is true in even a wider sense. The loftier powers of imagination, the range of poetical elevation, are cramped and killed in a base, world-worshipping age. The streams of life grow putrid, the fresh and bright gifts of God are polluted, when the ocean of public thought is unwholesome.

Verse 4. - And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood. Omit "angel" (see on ver. 3). "Into the rivers," etc., as in the previous cases. The singular ἐγένετο, probably on account of the neuter ψ῞δατα being understood. The idea of the second vial is carried on here (cf. on ver. 3). Note the corresponding judgment of the third trumpet. In addition to the interpretation of the second vial given above, it is probable that the blood signifies the slaughter and death which is part of God's vengeance on the wicked (cf. ver. 6). The divisions adopted in the first four vials correspond to those in Revelation 14, which designate the whole of God's created world, "heaven, and earth, and the sea, and the fountains of waters."

16:1-7 We are to pray that the will of God may be done on earth as it is done in heaven. Here is a succession of terrible judgments of Providence; and there seems to be an allusion to several of the plagues of Egypt. The sins were alike, and so were the punishments. The vials refer to the seven trumpets, which represented the rise of antichrist; and the fall of the enemies of the church shall bear some resemblance to their rise. All things throughout their earth, their air, their sea, their rivers, their cities, all are condemned to ruin, all accursed for the wickedness of that people. No wonder that angels, who witness or execute the Divine vengeance on the obstinate haters of God, of Christ, and of holiness, praise his justice and truth; and adore his awful judgments, when he brings upon cruel persecutors the tortures they made his saints and prophets suffer.And the third angel poured his vial upon the rivers and fountains of waters,.... Which also is not to be literally understood of a stagnation of them, before the burning of the world; nor of the destruction of Popish fleets and navies, such as the Spanish armada in 1588, and others since; but rather of Popish writings, of the most learned and subtle men among them, who like rivers and fountains, which supply and fill the sea, support and keep up the Romish jurisdiction and hierarchy; and of the confutation of them by Protestant writers; and of the utter destruction of their principal orders, and chief men among them, as cardinals, archbishops, bishops, priests, Jesuits, &c. though it seems chiefly to design the places near to Rome, such as Italy and Savoy; for as the third trumpet affects the rivers and fountains, Revelation 8:10 and brings in the Huns into Italy, and issued in the destruction of the empire; so the third vial affects the same, and brings terrible wars, and great effusion of blood, where so much of the blood of the saints have been shed: hence it follows, and they became blood; these countries will be covered with blood, and a reformation will ensue upon it; the allusion is to Exodus 7:19.