But if you will not let My people go, I will send swarms of flies upon you and your officials and your people and your houses. The houses of the Egyptians and even the ground where they stand will be full of flies.

Exodus 8:20
Then the LORD said to Moses, "Get up early in the morning, and when Pharaoh goes out to the water, stand before him and tell him that this is what the LORD says: 'Let My people go, so that they may worship Me.

Exodus 8:22
But on that day I will give special treatment to the land of Goshen, where My people live; no swarms of flies will be found there. In this way you will know that I, the LORD, am in the land.

Exodus 8:24
And the LORD did so. Thick swarms of flies poured into Pharaoh's palace and into the houses of his officials. Throughout Egypt the land was ruined by swarms of flies.

Exodus 10:6
They will fill your houses and the houses of all your officials and every Egyptian--something neither your fathers nor your grandfathers have seen since the day they came into this land.'" Then Moses turned and left Pharaoh's presence.

Psalm 105:31
He spoke, and insects swarmed--gnats throughout their country.

Else, if you will not let my people go, behold, I will send swarms of flies on you, and on your servants, and on your people, and into your houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground where on they are.