Swarms fill Egypt but spare Goshen; the fourth plague
Dense swarms filled Egyptian homes and ruined the land, while the LORD set apart Goshen where Israel lived. Pharaoh again promised release, then hardened his heart when the swarms departed (Exodus 8:20-32).
20Then the LORD said to Moses, “Get up early in the morning, and when Pharaoh goes out to the water, stand before him and tell him that this is what the LORD says: ‘Let My people go, so that they may worship Me. 21But if you will not let My people go, I will send swarms of flies upon you and your officials and your people and your houses. The houses of the Egyptians and even the ground where they stand will be full of flies. 22But on that day I will give special treatment to the land of Goshen, where My people live; no swarms of flies will be found there. In this way you will know that I, the LORD, am in the land.