23 Then Moses stretched forth his rod 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; 24 there 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. 25 The hail struck down everything that was in the field throughout all the land of Egypt, both man and beast; and the hail struck down every plant of the field, and shattered every tree of the field. 26 Only in the land of Goshen, where the people of Israel were, there was no hail. 27 Then Pharaoh sent, and called Moses and Aaron, and said to them, "I have sinned this time; the Lord is in the right, and I and my people are in the wrong. 28 Entreat the Lord; for there has been enough of this thunder and hail; I will let you go, and you shall stay no longer." 29 Moses 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, that you may know that the earth is the Lord's. 30 But as for you and your servants, I know that you do not yet fear the Lord God." 31 (The flax and the barley were ruined, for the barley was in the ear and the flax was in bud. 32 But the wheat and the spelt were not ruined, for they are late in coming up.) 33 So Moses went out of the city from Pharaoh, and stretched out his hands to the Lord; and the thunder and the hail ceased, and the rain no longer poured upon the earth. 34 But when Pharaoh saw that the rain and the hail and the thunder had ceased, he sinned yet again, and hardened his heart, he and his servants.
Matthew Henry's Commentary on Exodus 9:23-34
Commentary on Exodus 9:22-35
(Read Exodus 9:22-35)
Woful havoc this hail made: it killed both men and cattle; the corn above ground was destroyed, and that only preserved which as yet was not come up. The land of Goshen was preserved. God causes rain or hail on one city and not on another, either in mercy or in judgment. Pharaoh humbled himself to Moses. No man could have spoken better: he owns himself wrong; he owns that the Lord is righteous; and God must be justified when he speaks, though he speaks in thunder and lightning. Yet his heart was hardened all this while. Moses pleads with God: though he had reason to think Pharaoh would repent of his repentance, and he told him so, yet he promises to be his friend. Moses went out of the city, notwithstanding the hail and lightning which kept Pharaoh and his servants within doors. Peace with God makes men thunder-proof. Pharaoh was frightened by the tremendous judgment; but when that was over, his fair promises were forgotten. Those that are not bettered by judgments and mercies, commonly become worse.