Or else, if you will not let My people go, behold, I will send swarms of flies upon you and your servants, upon your people and into your houses. The houses of the Egyptians shall be full of swarms of flies, and also the ground where they are.

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

He spoke, and there came swarms of flies, and gnats in all their territory.