Exodus 7:15-18

15 a  Go to Pharaoh in the morning, as he is going out to the water. Stand on the bank of the Nile to meet him, and take in your hand b  the staff that turned into a c  serpent. 16And you shall say to him, ‘The d   Lord, the God of the Hebrews, sent me to you, saying, “Let my people go, e  that they may serve me in the wilderness.” But so far, you have not obeyed. 17Thus says the  Lord, “By this f  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 g  it shall turn into blood. 18The fish in the Nile shall die, and the Nile will stink, and the Egyptians will h  grow weary of drinking water from the Nile.”’”
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