Exodus 10:16-20

16Pharaoh urgently sent for Moses and Aaron and said, “I have sinned against the Lord your God and against you.

17Please forgive my sin once more and make an appeal to the Lord your God, so that he will just take this death away from me.”

18Moses left Pharaoh’s presence and appealed to the Lord.

19Then the Lord changed the wind to a strong west wind, and it carried off the locusts and blew them into the Red Sea. Not a single locust was left in all the territory of Egypt.

20But the Lord hardened Pharaoh’s heart, and he did not let the Israelites go.