²¹ And the Lord said to Moses, “When you go back to Egypt, see that you perform before Pharaoh all the wonders that I have put in your power, but I will harden his heart, so that he will not let the people go.^(A)

The First Plague: Water Turned to Blood

¹⁴ Then the Lord said to Moses, “Pharaoh’s heart is hardened; he refuses to let the people go.^(A)