10 So Moses and Aaron went to Pharaoh and did just as the Lord commanded. Aaron cast down his staff before Pharaoh and his servants, and it became a serpent. 11 Then Pharaoh summoned the wise men and the sorcerers, and they, the ^wmagicians of Egypt, also ^xdid the same by their secret arts. 12 For each man cast down his staff, and they became serpents. But Aaron’s staff swallowed up their staffs. 13 Still ^rPharaoh’s heart was hardened, and he would not listen to them, ^ras the Lord had said.

14 Then the Lord said to Moses, “Pharaoh’s heart is hardened; he refuses to let the people go. 15 ^yGo to Pharaoh in the morning, as he is going out to the water, and stand on the bank of the Nile to meet him. Take in your hand ^zthe staff that turned into a ^aserpent. 16 And you shall say to him, ‘The ^bLord, the God of the Hebrews, sent me to you, saying, “Let my people go, ^cthat they may serve me in the wilderness.” But so far, you have not obeyed. 17 Thus says the Lord, “By this ^dyou 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 ^eit shall turn into blood.