Revelation 8:8
Then the second angel blew his trumpet, and what looked like a great mountain ablaze with fire was thrown into the sea, and one third of the sea turned into blood,
Revelation 11:6
They have the power to shut up the sky, so that no rain will fall during the days when they are prophesying, and they have power to turn the waters into blood and to smite the earth with any plague whenever they please.
Revelation 16:3-6
The second emptied his bowl upon the sea, and it turned into blood like a dead man's, and every live thing in the sea died.
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
Then the second angel blew his trumpet, and what looked like a great mountain ablaze with fire was thrown into the sea, and one third of the sea turned into blood,
Revelation 16:3
The second emptied his bowl upon the sea, and it turned into blood like a dead man's, and every live thing in the sea died.