13 Then the Lord said to Moses, "Get up early in the morning and stand before Pharaoh. Tell him, 'This is what the Lord, the God of the Hebrews, says: Let my people go, so they can worship me. 14 If you don't, I will send more plagues on you and your officials and your people. Then you will know that there is no one like me in all the earth. 15 By now I could have lifted my hand and struck you and your people with a plague to wipe you off the face of the earth. 16 But I have spared you for a purpose-to show you my power and to spread my fame throughout the earth. 17 But you still lord it over my people and refuse to let them go. 18 So tomorrow at this time I will send a hailstorm more devastating than any in all the history of Egypt. 19 Quick! Order your livestock and servants to come in from the fields to find shelter. Any person or animal left outside will die when the hail falls.'" 20 Some of Pharaoh's officials were afraid because of what the Lord had said. They quickly brought their servants and livestock in from the fields. 21 But those who paid no attention to the word of the Lord left theirs out in the open.
22 Then the Lord said to Moses, "Lift your hand toward the sky so hail may fall on the people, the livestock, and all the plants throughout the land of Egypt." 23 So Moses lifted his staff toward the sky, and the Lord sent thunder and hail, and lightning flashed toward the earth. The Lord sent a tremendous hailstorm against all the land of Egypt. 24 Never in all the history of Egypt had there been a storm like that, with such devastating hail and continuous lightning. 25 It left all of Egypt in ruins. The hail struck down everything in the open field-people, animals, and plants alike. Even the trees were destroyed. 26 The only place without hail was the region of Goshen, where the people of Israel lived. 27 Then Pharaoh quickly summoned Moses and Aaron. "This time I have sinned," he confessed. "The Lord is the righteous one, and my people and I are wrong. 28 Please beg the Lord to end this terrifying thunder and hail. We've had enough. I will let you go; you don't need to stay any longer." 29 "All right," Moses replied. "As soon as I leave the city, I will lift my hands and pray to the Lord . Then the thunder and hail will stop, and you will know that the earth belongs to the Lord . 30 But I know that you and your officials still do not fear the Lord God." 31 (All the flax and barley were ruined by the hail, because the barley had formed heads and the flax was budding. 32 But the wheat and the emmer wheat were spared, because they had not yet sprouted from the ground.) 33 So Moses left Pharaoh's court and went out of the city. When he lifted his hands to the Lord, the thunder and hail stopped, and the downpour ceased.
Matthew Henry's Commentary on Exodus 9:13-33
Commentary on Exodus 9:13-21
(Read Exodus 9:13-21)
Moses is here ordered to deliver a dreadful message to Pharaoh. Providence ordered it, that Moses should have a man of such a fierce and stubborn spirit as this Pharaoh to deal with; and every thing made it a most signal instance of the power of God has to humble and bring down the proudest of his enemies. When God's justice threatens ruin, his mercy at the same time shows a way of escape from it. God not only distinguished between Egyptians and Israelites, but between some Egyptians and others. If Pharaoh will not yield, and so prevent the judgment itself, yet those that will take warning, may take shelter. Some believed the things which were spoken, and they feared, and housed their servants and cattle, and it was their wisdom. Even among the servants of Pharaoh, some trembled at God's word; and shall not the sons of Israel dread it? But others believed not, and left their cattle in the field. Obstinate unbelief is deaf to the fairest warnings, and the wisest counsels, which leaves the blood of those that perish upon their own heads.
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.