Exodus 9:23-29
English Standard Version
Chapter 9
23Then Moses stretched out his staff toward heaven, and the Lord sent thunder and hail, and fire ran down to the earth. And the Lord rained hail upon the land of Egypt. 24There was hail and fire flashing continually in the midst of the hail, very heavy hail, such as had never been in all the land of Egypt since it became a nation. 25The hail struck down everything that was in the field in all the land of Egypt, both man and beast. And the hail struck down every plant of the field and broke every tree of the field. 26Only in the land of Goshen, where the people of Israel were, was there no hail.
27Then Pharaoh sent and called Moses and Aaron and said to them, "This time I have sinned; the Lord is in the right, and I and my people are in the wrong.
28Plead with the Lord, for there has been enough of God 's thunder and hail. I will let you go, and you shall stay no longer."
29Moses said to him, "As soon as I have gone out of the city, I will stretch out my hands to the Lord. The thunder will cease, and there will be no more hail, so that you may know that the earth is the Lord 's.