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;
Revelation 11:6
These have authority to shut the heaven, that it rain not in the days of their prophecy; and they have authority over the waters, to turn them into blood, and to smite the earth with every plague, as often as they may wish.
Revelation 16:3-6
And the second poured out his bowl into the sea; and it became blood, as of a dead man; and every living soul died, the things in the sea.
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
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;
Revelation 16:3
And the second poured out his bowl into the sea; and it became blood, as of a dead man; and every living soul died, the things in the sea.