Exodus 7:14

“And you shall take in your hand this staff, with which you shall do the signs.”

And Pharaoh sent, and behold, there was not even one of the livestock of Israel dead. But the heart of Pharaoh was hardened with firmness, and he did not let the people go.

and His signs and His works which He did in the midst of Egypt to Pharaoh the king of Egypt and to all his land;

“Then You performed signs and wonders against Pharaoh, Against all his servants and all the people of his land; For You knew that they acted presumptuously toward them, And made a name for Yourself as it is this day.

The Plague of Water Turning to Blood