Exodus 8:20-22

And the Lord said unto Moses, Rise up early in the morning, and stand before Pharaoh; lo, he cometh forth to the water; and say unto him, Thus saith the Lord, Let my people go, that they may serve me. Else, if thou wilt not let my people go, behold, I will send swarms of flies upon thee, and upon thy servants, and upon thy people, and into thy houses: and the houses of the Egyptians shall be full of swarms of flies, and also the ground whereon they are. And I will sever in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end thou mayest know that I am the Lord in the midst of the earth.

Once again the Lord meets Pharaoh early and gives him the same plain command: Let My people go, that they may serve Me. But if Pharaoh refuses, then the next plague will come, swarms of flies filling the houses, covering the land, and turning daily life into misery. Psalm 78:45 says these flies tormented and destroyed, so this was no small irritation. This was judgment that brought real distress and ruin.

But what makes this plague especially striking is what the Lord says next. He would sever the land of Goshen from the rest of Egypt. The flies would fill Egyptian houses, but not the homes of His own people. The plague would fall there, but not here. For the first time in these judgments, the Lord openly marks a distinction between Egypt and Israel.

That is important because God is showing Pharaoh that He is not merely releasing random trouble into the land. He is ruling over it with precision. He knows exactly where His people are. He knows exactly where judgment is to fall and where mercy is to stand guard. Nothing is loose. Nothing is accidental. Even the flies move only where He permits.

There is comfort in that. The Lord knows how to make a difference between His people and the world around them. He knows how to preserve in the middle of judgment. He knows how to keep what belongs to Him. Goshen may have been inside Egypt geographically, but it was not under the same hand judicially. The Lord put a boundary there.

That is still one of the sweetest truths in Scripture. God knows those who are His. He is able to keep them. He is able to mark them out. He is able to preserve them even when trouble is falling all around. That does not always mean they never feel pressure, but it does mean they are never lost in the crowd, never forgotten in the storm, and never outside the reach of His care.

And the reason the Lord gives is beautiful. “To the end thou mayest know that I am the Lord in the midst of the earth.” Not far off. Not detached. Not absent. In the midst of it. Right there in the middle of the conflict, the pressure, the judgment, and the separation, God says He wants Pharaoh to know that He is present and active.

So this is more than a plague of flies. It is a revelation of divine distinction. The Lord is showing that He not only judges, but also separates. He not only smites, but also shields. He not only confronts rebellion, but watches over His own.

And there is something encouraging in that for every believer. There may be flies in Egypt, but God still knows where Goshen is.