And the second angel poured out his bowl upon the sea; and it became as the blood of a dead man; and every living thing died in the sea.
Read Chapter 16
George Leo Haydock
AD 1849
And the second. On pouring out the vial follows the divine judgment. There appears blood, like that of a dead man. This passage, Pastorini is of opinion alludes to the Arian heresy, which, like blood, flowed in vigorous circulation whilst in health and strength, gradually retarded its motion, as in a dying man, and was at last totally lost and stopped, like the circulation in a dead man. Hence every living soul died in the sea. (Pastorini)
Calmet interprets it as a prediction of the calamities which befell the Roman empire, during the invasion of the Persians on the east, and the Goths and other barbarous nations on the west.