Exodus 7:12-14

Holman Christian Standard Bible

¹² Each one threw down his staff, and it became a serpent. But Aaron’s staff swallowed their staffs. ¹³ However, Pharaoh’s heart hardened,^(A) and he did not listen to them, as the Lord had said.

The First Plague: Water Turned to Blood

¹⁴ Then the Lord said to Moses, “Pharaoh’s heart is hard: he refuses to let the people go.