Exodus 10:16-20

Then Pharaoh hastily called Moses and Aaron and said, “I have sinned against the LORD your God, and against you. Now therefore, forgive my sin, please, only this once, and plead with the LORD your God only to remove this death from me.” So he went out from Pharaoh and pleaded with the LORD. And the LORD turned the wind into a very strong west wind, which lifted the locusts and drove them into the Red Sea. Not a single locust was left in all the country of Egypt. But the LORD hardened Pharaoh’s heart, and he did not let the people of Israel go.