19. So the magicians told Pharaoh that the power of God did this. But Pharaoh refused to listen to them. This happened just as the Lord had said.
20. The Lord said to Moses, “Get up in the morning and go to Pharaoh. He will go out to the river. Tell him that the Lord says, ‘Let my people go and worship me!
21. If you don’t let my people go, then flies will come into your houses. The flies will be on you and your officials. The houses of Egypt will be full of flies. They will be all over the ground too!
22. But I will not treat the Israelites the same as the Egyptians. There will not be any flies in Goshen, where my people live. In this way you will know that I, the Lord, am in this land.
23. So tomorrow I will treat my people differently from your people. This will be my proof.’”
24. So the Lord did just what he said. Millions of flies came into Egypt. The flies were in Pharaoh’s house, and they were in all his officials’ houses. They were all over Egypt. The flies were ruining the country.
25. So Pharaoh called for Moses and Aaron and told them, “Offer sacrifices to your God here in this country.”