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 killed their fish.

Exodus 7:17-21

Thus says LORD, In this thou shall know that I am LORD. 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 agent poured out his bowl into the sea, and it became blood like of a dead man, and every living soul in the sea died.

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 killed their fish.
Exodus 7:17
Thus says LORD, In this thou shall know that I am LORD. 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 agent poured out his bowl into the sea, and it became blood like of a dead man, and every living soul in the sea died.