Exodus 8:18-19

Amplified Bible

¹⁸ The magicians (soothsayer-priests) tried by their secret arts and enchantments to create gnats, but they could not; and there were gnats on man and animal. ¹⁹ Then the magicians said to Pharaoh, “This is the [supernatural] finger of God.” But Pharaoh’s heart was hardened and he would not listen to them, just as the Lord had said.