Exodus 10:16-20

Then Pharaoh called for Moses and Aaron in haste, and said, “I have sinned against the LORD your God and against you. Now therefore, please forgive my sin only this once, and entreat the LORD your God, that He may take away from me this death only.” So he went out from Pharaoh and entreated the LORD. And the LORD turned a very strong west wind, which took the locusts away and blew them into the Red Sea. There remained not one locust in all the territory of Egypt. But the LORD hardened Pharaoh’s heart, and he did not let the children of Israel go.