'Gnats' in the Bible

Then the Lord said to Moses, “Tell Aaron: Stretch out your staff and strike the dust of the earth, and it will become gnats throughout the land of Egypt.”

And they did this. Aaron stretched out his hand with his staff, and when he struck the dust of the earth, gnats were on man and beast. All the dust of the earth became gnats throughout the land of Egypt.

The magicians tried to produce gnats using their occult practices, but they could not. The gnats remained on man and beast.

He spoke, and insects came—gnats throughout their country.

Lift ye up to the heavens your eyes, And look attentively unto the earth beneath, For the heavens as smoke have vanished, And the earth as a garment weareth out, And its inhabitants as gnats do die, And My salvation is to the age, And My righteousness is not broken.