And the dragon stood on the sand of the seashore.Then I saw a beast coming up out of the sea, having ten horns and seven heads, and on his horns were ten diadems, and on his heads were blasphemous names.

It became

These have the power to shut up the sky, so that rain will not 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 plague, as often as they desire.

Thus says the Lord, “By this you shall know that I am the Lord: behold, I will strike the water that is in the Nile with the staff that is in my hand, and it will be turned to blood.

And turned their rivers to blood,
And their streams, they could not drink.

He turned their waters into blood
And caused their fish to die.

Thus I will judge you like women who commit adultery or shed blood are judged; and I will bring on you the blood of wrath and jealousy.

And every

and a third of the creatures which were in the sea and had life, died; and a third of the ships were destroyed.

of all that was on the dry land, all in whose nostrils was the breath of the spirit of life, died.

General references

And turned their rivers to blood,
And their streams, they could not drink.

He turned their waters into blood
And caused their fish to die.