'Flies' in the Bible
For if you do not let my people go, see, I will send clouds of flies on you and on your servants and on your people and into their houses; and the houses of the Egyptians and the land where they are will be full of flies.
And at that time I will make a division between your land and the land of Goshen where my people are, and no flies will be there; so that you may see that I am the Lord over all the earth.
And the Lord did so; and great clouds of flies came into the house of Pharaoh and into his servants' houses, and all the land of Egypt was made waste because of the flies.
And Moses said, When I go out from you I will make prayer to the Lord that the cloud of flies may go away from Pharaoh and from his people and from his servants tomorrow: only let Pharaoh no longer by deceit keep back the people from making their offering to the Lord.
And the Lord did as Moses said, and took away the cloud of flies from Pharaoh and from his servants and from his people; not one was to be seen.
He sent different sorts of flies among them, poisoning their flesh; and frogs for their destruction.
Dead flies make the oil of the perfumer give out an evil smell; more valued is a little wisdom than the great glory of the foolish.