Exodus 8:15

12 And Moses -- Aaron also -- goeth out from Pharaoh, and Moses crieth unto Jehovah, concerning the matter of the frogs which He hath set on Pharaoh;

13 and Jehovah doth according to the word of Moses, and the frogs die out of the houses, out of the courts, and out of the fields,

14 and they heap them up together, and the land stinketh.

15 And Pharaoh seeth that there hath been a respite, and he hath hardened his heart, and hath not hearkened unto them, as Jehovah hath spoken.

16 And Jehovah saith unto Moses, `Say unto Aaron, Stretch out thy rod, and smite the dust of the land, and it hath become gnats in all the land of Egypt.`

17 And they do so, and Aaron stretcheth out his hand with his rod, and smiteth the dust of the land, and the gnats are on man and on beast; all the dust of the land hath been gnats in all the land of Egypt.

18 And the scribes do so with their flashings, to bring out the gnats, and they have not been able, and the gnats are on man and on beast;