Torrey's TopicalTextbook
Exodus 8:21-24Else, if you will not let my people go, behold, I will send swarms of flies on you, and on your servants, and on your people, and into your houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground where on they are.
Torrey's Topical Textbook—AKJV