Exodus 8:18

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;

Exodus 8:18 Meaning and Commentary

Exodus 8:18

And the magicians did so with their enchantments, to bring
forth lice
They made use of their magical art, and juggling tricks they were masters of, to produce the like sort of creatures, or at least to make such appear, or seem to appear, to the eyes of men:

but they could not;
God would not suffer them to do it, to impose upon Pharaoh, and deceive him and the Egyptians any longer; and a stop is put to them, when such small and despicable creatures were produced, the more to put them to shame and confusion, and to show that what they did before was not real, and that what they did in appearance was only by divine permission;

so there were lice upon man and upon beast;
these lay in great numbers on both, biting and distressing them in a most terrible manner; for as the magicians could not produce such creatures, it was not in their power to remove them.

Exodus 8:18 In-Context

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;
19 and the scribes say unto Pharaoh, `It [is] the finger of God;' and the heart of Pharaoh is strong, and he hath not hearkened unto them, as Jehovah hath spoken.
20 And Jehovah saith unto Moses, `Rise early in the morning, and station thyself before Pharaoh, lo, he is going out to the waters, and thou hast said unto him, Thus said Jehovah, Send My people away, and they serve Me;
Young's Literal Translation is in the public domain.