21. If you do not let my people go, I will send large numbers of flies. I will send them on you and your officials. I will send them on your people and into your homes. The houses of the Egyptians will be full of flies. Even the area where they live will be full of flies.
22. " ' "But on that day I will treat the area of Goshen differently from yours. That is where my people live. There will not be large numbers of flies in Goshen. Then you will know that I, the Lord, am in this land.
23. I will treat my people differently from yours. The miraculous sign will take place tomorrow." ' "
24. So the Lord did it. Huge numbers of flies poured into Pharaoh's palace. They came into the homes of his officials. All over Egypt the flies destroyed the land.
25. Then Pharaoh sent for Moses and Aaron. He said to them, "Go. Offer sacrifices to your God here in the land."