Exodus 7:12-14

International Standard Version

¹² So each one threw down his staff and it became a serpent, but Aaron’s staff swallowed up their staffs. ¹³ Yet Pharaoh’s heart was stubborn^[a] and he did not listen to them, just as the Lord had said would happen.

Water is Turned into Blood

¹⁴ Then the Lord told Moses, “Pharaoh’s heart is hard. He has refused to let the people go.