Exodus 8:24

Overview - Exodus 8
Frogs are sent.
Pharaoh sues to Moses, who by prayer removes them away.
16 The dust is turned into lice, which the magicians could not do.
20 The plague of flies.
25 Pharaoh inclines to let the people go, but yet is hardened.
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Exodus 8:24  (King James Version)
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.

21 ; Psalms 78:45 ; 105:31

the land
How intolerable a plague of flies can prove, is evident from the fact that whole districts have been laid waste by them. The inhabitants have been forced to quit their cities, not being able to stand against the flies and gnats with which they were pestered. Hence different people had deities whose office it was to defend them against flies. Among these may be reckoned Baalzebub, the fly-god of Ekron; Hercules, {muscarum abactor,} Hercules the expeller of flies; and hence
Jupiter had the titles of [apomuios, muiagros, muiochoros,] because he was supposed to expel flies, and especially clear his temples of these insects See Bryant.

or destroyed.