Exodus 10:16-20

16Then Pharaoh hurriedly 1called for Moses and Aaron, and he said, “2I have sinned against the Lord your God and against you. 17Now therefore, please forgive my sin only this once, and 3make supplication to the Lord your God, that He would only remove this death from me.” 184He went out from Pharaoh and made supplication to the Lord. 19So the Lord shifted the wind to a very strong west wind which took up the locusts and drove them into the 5Red Sea; not one locust was left in all the territory of Egypt. 20But 6the Lord 7hardened Pharaoh’s heart, and he did not let the sons of Israel go.