And the second angel poured out his vial upon the sea; and it became as the blood of a dead man: and every living soul died in the sea.

And the second poured out his bowl into the sea; and it became blood as of a dead man; and every living soul died, even the things that were in the sea.

And the second poured out his bowl on the sea; and it became blood, as of a dead man; and every living soul died in the sea.

And the second messenger did pour out his vial to the sea, and there came blood as of one dead, and every living soul died in the sea.

The second angel poured his bowl into the sea, and it became blood, like a dead man's blood, and every living creature in the sea died.

And the second let what was in his vessel come out into the sea; and it became blood as of a dead man; and every living thing in the sea came to an end.

And the second Angel poured out his bowl upon the sea. And it became like the blood of the dead, and every living creature in the sea died.

Then the second angel emptied his bowl on the sea; and it turned to blood like the blood of a corpse, and every living thing died – everything in the sea.

And the second angel poured out his vial upon the sea - So the second trumpet Revelation 8:8, "And the second angel sounded, and as it were a great mountain burning with fire was cast into the sea; and the third part of the sea became blood." For the meaning of this as a symbol, see the notes on that verse.
And it became as the blood of a dead man - "Either very bloody, like a mangled corse, or else colored, as it were, with the dark and almost black blood of a dead man" (Prof. Stuart, in loco). The latter would seem to be, most probably, the meaning; implying that the ocean would become discolored, and indicating that this was the effect of blood shed in great quantities on its waters. In Revelation 8:8 it is, "the sea became blood"; here the allusion to the blood of a dead man would more naturally suggest the idea of naval conflicts, and of the blood of the slain poured in great quantities into the deep.
And every living soul died in the sea - In Revelation 8:9 it is said that "the third part of the creatures that were in the sea died, and the third part of the ships were destroyed." Here the destruction is more general; the calamity is more severe and awful. It is as if every living thing - πᾶσα ψυχὴ ζῶσα pasa psuchē zōsa - had died. No emphasis should be put on the word "soul" here, for the word means merely "a creature, a living thing, an animal," Acts 2:43; Acts 3:23; Romans 13:1; 1-Corinthians 15:45. See Robinson, Lexicon sub voce, c. The sense here is, that there would be some dreadful calamity, as if the sea were to be changed into dark blood, and as if every living thing in it were to die.
In inquiring into the proper application of this, it is natural to look for something pertaining to the sea, or the ocean (see the notes on Revelation 8:8-9), and we should expect to find the fulfillment in some calamity that would fall on the marine force, or the commerce of the power that is here referred to; that is, according to the interpretation all along adopted, of the papal power; and the proper application, according to this interpretation, would be the complete destruction or annihilation of the naval force that contributed to sustain the papacy. This we should look for in respect to the naval power of France, Spain, and Portugal, for these are the only papal nations that have had a navy. We should expect, in the fulfillment of this, to find a series of naval disasters, reddening the sea with blood, which would tend to weaken the power of the papacy, and which might be regarded as one in the series of events that would ultimately result in its entire overthrow.
Accordingly, in pursuance of the plan adopted in explaining the pouring out of the first vial, it is to be observed that immediately succeeding, and connected with, the events thus referred to, there was a series of naval disasters that swept away the fleets of France, and that completely demolished the most formidable naval power that had ever been prepared by any nation under the papal dominion. This series of disasters is thus noticed by Mr. Elliott (iii. 329, 330): "Meanwhile, the great naval war between France and England was in progress; which, from its commencement in February, 1793, lasted for above twenty years, with no intermission but that of the short and delusive peace of Amiens; in which war the maritime power of Great Britain was strengthened by the Almighty Providence that protected her to destroy everywhere the French ships, commerce, and smaller colonies; including those of the fast and long-continued allies of the French, Holland and Spain. In the year 1793, the greater part of the French fleet at Toulon was destroyed by Lord Hood; in June, 1794, followed Lord Howe's great victory over the French off Ushant; then the taking of Corsica, and nearly all the smaller Spanish and French West India Islands; then, in 1795, Lord Bridport's naval victory, and the capture of the Cape of Good Hope; as also soon after of a French and Dutch fleet, sent to retake it; then, in 1797, the victory over the Spanish fleet off Cape Vincent; and that of Camperdown over the Dutch; then, in succession, Lord Nelson's three mighty victories - of the Nile in 1798, of Copenhagen in 1801, and in 1805 of Trafalgar. Altogether in this naval war, from its beginning in 1793, to its end in 1815, it appears that there were destroyed near 200 ships of the line, between 300 and 400 frigates, and an almost incalculable number of smaller vessels of war and ships of commerce. The whole history of the world does not present such a period of naval war, destruction, and bloodshed." This brief summary may show, if this was referred to, the propriety of the expression, "The sea became as the blood of a dead man"; and may show also that, on the supposition that it was intended that these events should be referred to, an appropriate symbol has been employed. No language could more strikingly set forth these bloody scenes.

As the blood of a dead man - Either meaning blood in a state of putrescency, or an effusion of blood in naval conflicts; even the sea was tinged with the blood of those who were slain in these wars. This is most probably the meaning of this vial. These engagements were so sanguinary that both the conquerors and the conquered were nearly destroyed; every living soul died in the sea.

(4) And the second angel poured out his vial upon the sea; and it (a) became as the blood of a dead [man]: and every living soul died in the sea.
(4) The history of the second angel, who troubles and molests the seas, that he may stir up the conscience of men sleeping in their wickedness; (Revelation 8:8).
(a) It was turned into rotten and filthy blood, such as is in dead bodies.

And the second angel poured out his vial upon the sea,.... Not literally; and so does not design the stagnation of it, which it is thought will be before the general conflagration; see Amos 7:4 nor is it to be understood of the sea of this world, and the men of it, who are like a troubled sea; but rather of Popish doctrines and councils, which are a sea of errors, and will now be confuted and put an end to. Brightman applies it to the council of Trent, and makes this angel to be Chemnitius, a German divine, who wrote a confutation of it; but as the sea is a collection of many waters, and many waters in this book signify the people and nations under the Romish yoke, sea here may design the whole jurisdiction of Rome, or mystical Babylon; see Jeremiah 51:36 and particularly its maritime powers, Spain and Portugal: and as the second trumpet affected the sea, Revelation 8:8 and brought the Vandals into Spain and Portugal, so this second vial affects the sea, and brings great wars, slaughter, and bloodshed into these parts, when they also will be reformed from Popery:
and it became as the blood of a dead man; thick, clotted together, and putrid, and so never to be returned to their former state:
and every living soul died in the sea: those, that are not reformed will either die by the sword, or fly into other parts; for there will be no comfortable living for the Popish party in those countries where now they live in power, ease, and affluence. This, and the following vial, are referred by Mr. Daubuz, the one to the first crusades, or holy wars, for the regaining of the holy land, and the other to the latter of them.

angel--So B and ANDREAS. But A, C, and Vulgate omit it.
upon--Greek, "into."
became as . . . blood--answering to another Egyptian plague.
of a dead man--putrefying.
living soul--So B and ANDREAS. But A, C, and Syriac, "soul of life" (compare Genesis 1:30; Genesis 7:21-22).
in the sea--So B and ANDREAS. But A, C, and Syriac read, "(as respects) the things in the sea."

And the second angel poured out his vial upon the sea. The first calamity has been upon the earth; the second is upon the ocean. The second angel pours his vial upon the sea. Then the waters become red as blood and in the great mortality that follows it seems to John as if every soul in the sea was dead. Again we ask if, in this series of calamities, there is one that smites the Catholic powers from the seas? Under the second trumpet a great and burning mountain fell into the sea. The Vandal power swept the Mediterranean, destroyed the Roman navy and then laid siege to the old imperial Rome. From the sea spiritual Rome, under the second vial, is weakened. The symbolism is fulfilled in the mightiest naval strife ever known. In 1780 France and England, upon the ocean, were nearly equally matched. Among the shores of the struggling colonies of the United States sometimes the English, sometimes the French fleets, rode in triumph. At Yorktown, the superiority of the French at sea cooped Cornwallis in until Washington compelled his surrender. With 1793 begins another contest for the mastery of the seas. It continues after Napoleon sits on the imperial throne, and did not end for twenty years. France, again a Catholic power by Napoleon's concordant with the Pope, rallies under the imperial flag with herself, Catholic Spain, Portugal and Italy, in the struggle. Protestant England and Catholic Europe strive together upon the ocean. The old Catholic powers, those which in the past have been the vile instruments of Papal wrong, the nations whose kings have committed fornication with the great spiritual harlot, suffer the loss in this long and deadly struggle of six hundred ships of the Line, the largest war vessels that then went to sea, besides the thousands of ships of war of smaller size. At the close of the contest, the naval power of Catholic Europe had been swept from the ocean. Once the Pope had claimed the dominion of the seas, and had given away newly discovered islands and continents, but now that proud claim has gone forever.

The second poured out his phial upon the sea - As opposed to the dry land. And it become blood, as of a dead man - Thick, congealed, and putrid. And every living soul - Men, beasts, and fishes, whether on or in the sea, died.