Exodus 8:17-24

17They did so; and Aaron stretched out his hand with his staff, and struck the dust of the earth, and there were 1gnats on man and beast. All the dust of the earth became 23gnats through all the land of Egypt. 18The 4magicians tried with their secret arts to bring forth 5gnats, but 6they could not; so there were 7gnats on man and beast. 19Then the 8magicians said to Pharaoh, “9This is the finger of God.” But Pharaoh’s heart was 10hardened, and he did not listen to them, as the Lord had said.

20Now the Lord said to Moses, “11Rise early in the morning and present yourself before Pharaoh, 12as 13he comes out to the water, and say to him, ‘Thus says the Lord, “14Let My people go, that they may serve Me. 21For if you do not let My people go, behold, I will send swarms of flies on you and on your servants and on your people and into your houses; and the houses of the Egyptians will be full of swarms of flies, and also the ground on which they dwell. 2215But on that day I will set apart the land of Goshen, where My people are 16living, so that no swarms of flies will be there, in order that you may know that 1718I, the Lord, am in the midst of the land. 23I will 19put a division between My people and your people. Tomorrow this sign will occur.”’” 24Then the Lord did so. And there came 20great swarms of flies into the house of Pharaoh and the houses of his servants and the land was 21laid waste because of the swarms of flies in all the land of Egypt.