Exodus 10:21-29 -- "Then the Lord said to Moses, “Stretch out your hand toward heaven, that there may be darkness over the land of Egypt, darkness which may even be felt.” So Moses stretched out his hand toward heaven, and there was thick darkness in all the land of Egypt three days. They did not see one another; nor did anyone rise from his place for three days. But all the children of Israel had light in their dwellings. Then Pharaoh called to Moses and said, “Go, serve the Lord; only let your flocks and your herds be kept back. Let your little ones also go with you.” But Moses said, “You must also give us sacrifices and burnt offerings, that we may sacrifice to the Lord our God. Our livestock also shall go with us; not a hoof shall be left behind. For we must take some of them to serve the Lord our God, and even we do not know with what we must serve the Lord until we arrive there.” But the Lord hardened Pharaoh’s heart, and he would not let them go. Then Pharaoh said to him, “Get away from me! Take heed to yourself and see my face no more! For in the day you see my face you shall die!” So Moses said, “You have spoken well. I will never see your face again.”"
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Exodus 8:1-15 -- "And the LORD spoke to Moses, “Go to Pharaoh and say to him, ‘Thus says the LORD: “Let My people go, that they may serve Me. But if you refuse to let them go, behold, I will smite all your territory with frogs. So the river shall bring forth frogs abundantly, which shall go up and come into your house, into your bedroom, on your bed, into the houses of your servants, on your people, into your ovens, and into your kneading bowls. And the frogs shall come up on you, on your people, and on all your servants.” ’ ” Then the LORD spoke to Moses, “Say to Aaron, ‘Stretch out your hand with your rod over the streams, over the rivers, and over the ponds, and cause frogs to come up on the land of Egypt.’ ” So Aaron stretched out his hand over the waters of Egypt, and the frogs came up and covered the land of Egypt. And the magicians did so with their enchantments, and brought up frogs on the land of Egypt. Then Pharaoh called for Moses and Aaron, and said, “Entreat the LORD that He may take away the frogs from me and from my people; and I will let the people go, that they may sacrifice to the LORD.” And Moses said to Pharaoh, “Accept the honor of saying when I shall intercede for you, for your servants, and for your people, to destroy the frogs from you and your houses, that they may remain in the river only.” So he said, “Tomorrow.” And he said, “Let it be according to your word, that you may know that there is no one like the LORD our God. And the frogs shall depart from you, from your houses, from your servants, and from your people. They shall remain in the river only.” Then Moses and Aaron went out from Pharaoh. And Moses cried out to the LORD concerning the frogs which He had brought against Pharaoh. So the LORD did according to the word of Moses. And the frogs died out of the houses, out of the courtyards, and out of the fields. They gathered them together in heaps, and the land stank. But when Pharaoh saw that there was relief, he hardened his heart and did not heed them, as the LORD had said."
