Exodus 8:21-31

21If you do not release my people, then I am going to send swarms of flies on you and on your servants and on your people and in your houses. The houses of the Egyptians will be full of flies, and even the ground they stand on.

22But on that day I will mark off the land of Goshen, where my people are staying, so that no swarms of flies will be there, that you may know that I am the Lord in the midst of this land.

23I will put a division between my people and your people. This sign will take place tomorrow.”’”

24The Lord did so; a thick swarm of flies came into Pharaoh’s house and into the houses of his servants, and throughout the whole land of Egypt the land was ruined because of the swarms of flies.

25Then Pharaoh summoned Moses and Aaron and said, “Go, sacrifice to your God within the land.”

26But Moses said, “That would not be the right thing to do, for the sacrifices we make to the Lord our God would be an abomination to the Egyptians. If we make sacrifices that are an abomination to the Egyptians right before their eyes, will they not stone us?

27We must go on a three-day journey into the desert and sacrifice to the Lord our God, just as he is telling us.”

28Pharaoh said, “I will release you so that you may sacrifice to the Lord your God in the desert. Only you must not go very far. Do pray for me.”

29Moses said, “I am going to go out from you and pray to the Lord, and the swarms of flies will go away from Pharaoh, from his servants, and from his people tomorrow. Only do not let Pharaoh deal falsely again by not releasing the people to sacrifice to the Lord.”

30So Moses went out from Pharaoh and prayed to the Lord,

31and the Lord did as Moses asked – he removed the swarms of flies from Pharaoh, from his servants, and from his people. Not one remained!