Parallel
Exodus 8:18
Brenton's English Septuagint · Berean Standard Bible
And I will distinguish marvellously in that day the land of Gesem, on which my people dwell, in which the dog-fly shall not be: that thou mayest know that I am the Lord the God of all the earth.
The magicians tried to produce gnats using their magic arts, but they could not. And the gnats remained on man and beast.