John Gill Bible Commentary

He spake, and there came divers sorts of flies,.... Or a "mixture" (z) of various insects, and, as some interpret it, of wild beasts; and so Kimchi says evil beasts are meant, which were raised up to go into all their borders; the Arabic version renders it "dogflies", after the Septuagint; See Gill on Psa 78:45, this was the fourth plague, Exo 8:24. And lice in all their coasts; this is the third plague, and what the magicians could not imitate, but were obliged to own the finger of God was in it, Exo 8:16. God can make use of mean and despicable instruments to do his work; the weakness of God is stronger than men. (z) "mixtura insectarum", Pagninus, Montanus; "colluvies insectarum", Piscator, Gejerus, Michaelis; "mista bestiarum", Vatablus; "colluvies animalium", Junius & Tremellius.