Psalms 105:31 Midrash

אָ֭מַר וַיָּבֹ֣א עָרֹ֑ב כִּ֝נִּ֗ים בְּכָל־גְּבוּלָֽם׃

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

Read midrashic interpretation of Psalms 105:31: and classical rabbinic exegesis.