Exodus 8:24

Then the Lord did so. And there came great swarms of flies into the house of Pharaoh and the houses of his servants and the land was laid waste because of the swarms of flies in all the land of Egypt.

Psalm 78:45

He sent among them swarms of flies which devoured them,
And frogs which destroyed them.

Psalm 105:31

He spoke, and there came a swarm of flies
And gnats in all their territory.

Exodus 8:21

For if you do 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 will be full of swarms of flies, and also the ground on which they dwell.

Treasury of Scripture Knowledge

Summary

And the LORD did so; and there came a grievous swarm of flies into the house of Pharaoh, and into his servants' houses, and into all the land of Egypt: the land was corrupted by reason of the swarm of flies.

The land

Bible References

There

Exodus 8:21
For if you do 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 will be full of swarms of flies, and also the ground on which they dwell.
Psalm 78:45
He sent among them swarms of flies which devoured them,
And frogs which destroyed them.
Psalm 105:31
He spoke, and there came a swarm of flies
And gnats in all their territory.

The land

Exodus 8:14
So they piled them in heaps, and the land became foul.