Psalm 78:44

And turned their rivers into blood, And their streams, so that they could not drink.

Psalm 105:29

He turned their waters into blood, And slew their fish.

Exodus 7:17-21

Thus saith Jehovah, In this thou shalt know that I am Jehovah: behold, I will smite with the rod that is in my hand upon the waters which are in the river, and they shall be turned to blood.

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, even the things that were in the sea.

Treasury of Scripture Knowledge

Summary

And had turned their rivers into blood; and their floods, that they could not drink.

Bible References

General references

Psalm 105:29
He turned their waters into blood, And slew their fish.
Exodus 7:17
Thus saith Jehovah, In this thou shalt know that I am Jehovah: behold, I will smite with the rod that is in my hand upon the waters which are in the river, and they shall be turned to 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, even the things that were in the sea.

American Standard Version Public Domain