Exodus 10:16-20

16Then Pharaoh quickly called for Moses and Aaron and said, “I have sinned against Adonai your God and against you.

17Now forgive my sin, only this once, please! So pray to Adonai your God—just so He would take this death away from me!”

18So he went out from Pharaoh and prayed to Adonai.

19Then Adonai turned the wind from the west, very strong, and it carried off the locusts and drove them into the Sea of Reeds. Not one locust remained in all the territory of Egypt.

20But Adonai hardened Pharaoh’s heart, and he did not let Bnei-Yisrael go.