Exodus 7:12-14

English Standard Version

¹² For each man cast down his staff, and they became serpents. But Aaron's staff swallowed up their staffs. ¹³ Still ^(A)Pharaoh's heart was hardened, and he would not listen to them, ^(B)as the Lord had said.

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.