Exodus 9:11

Then the magicians did the same with their secret arts in order to bring forth gnats, but they could not; so there were gnats on man and beast.

“Then You performed signs and wonders against Pharaoh, Against all his servants and all the people of his land; For You knew that they acted presumptuously toward them, And made a name for Yourself as it is this day.

But they will not make further progress, for their folly will be obvious to all, just as theirs was also.

So the first angel went and poured out his bowl on the earth; and it became a loathsome and malignant sore on the people who have the mark of the beast and who worship his image.