'Swarm' in the Bible

The Nile will swarm with frogs; they will come up and go into your palace, into your bedroom and on your bed, into the houses of your officials and your people, and into your ovens and kneading bowls.

But if you will not let My people go, then I will send swarms of flies against you, your officials, your people, and your houses. The Egyptians’ houses will swarm with flies, and so will the land where they live.

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.