Revelation 8:8
The second angel blew, and what looked like a huge mountain on fire was hurled into the sea; a third of the sea turned blood,
Revelation 11:6
They have power to shut up the sky, so that no rain falls during the days when they are prophesying; and they have power over the waters, to turn them into blood, and also to smite the earth with all manner of plagues as often as they choose.
Revelation 16:3-6
The second poured out his bowl upon the sea; it turned blood like the blood of a corpse, and every living thing within the sea perished.
Treasury of Scripture Knowledge
Summary
Thus saith the LORD, In this thou shalt know that I am the LORD: behold, I will smite with the rod that is in mine hand upon the waters which are in the river, and they shall be turned to blood.
And they
Bible References
And they
Revelation 8:8
The second angel blew, and what looked like a huge mountain on fire was hurled into the sea; a third of the sea turned blood,
Revelation 16:3
The second poured out his bowl upon the sea; it turned blood like the blood of a corpse, and every living thing within the sea perished.