Revelation 16:3
The second angel poured out his bowl into the sea, and it became like the blood of a corpse, and every living thing died that was in the sea.
Exodus 7:17-21
Thus says the LORD, "By this you shall know that I am the LORD: behold, with the staff that is in my hand I will strike the water that is in the Nile, and it shall turn into blood.
Revelation 8:8-9
The second angel blew his trumpet, and something like a great mountain, burning with fire, was thrown into the sea, and a third of the sea became blood.
Revelation 11:6
They have the power to shut the sky, that no rain may fall during the days of their prophesying, and they have power over the waters to turn them into blood and to strike the earth with every kind of plague, as often as they desire.
Genesis 7:22
Everything on the dry land in whose nostrils was the breath of life died.
Psalm 78:44
He turned their rivers to blood, so that they could not drink of their streams.
Psalm 105:29
He turned their waters into blood and caused their fish to die.
Ezekiel 16:38
And I will judge you as women who commit adultery and shed blood are judged, and bring upon you the blood of wrath and jealousy.
Revelation 10:2
He had a little scroll open in his hand. And he set his right foot on the sea, and his left foot on the land,
Revelation 13:1
And I saw a beast rising out of the sea, with ten horns and seven heads, with ten diadems on its horns and blasphemous names on its heads.