He spoke, and there came swarms of flies, and gnats in all their country.
All Commentaries on Psalms 105:31 Go To Psalms 105
George Leo Haydock
AD 1849
Flies. This was revealed to David, or known by tradition, as it is not recorded by Moses. (Worthington)
Some copies of the Septuagint have, "the dog-fly "cinifes (Exodus viii. 16.) gnats, (Haydock) which are very common and tormenting in Egypt. The Jews understand lice. (Joseph and the Chaldean) (Calmet)