Exodus 8:21-23

Revised Standard Version

²¹ Else, if you will not let my people go, behold, I will send swarms of flies on you and your servants and your people, and into your houses; and the houses of the Egyptians shall be filled with swarms of flies, and also the ground on which they stand. ²² But on that day I will set apart the land of Goshen, where my people dwell, so that no swarms of flies shall be there; that you may know that I am the Lord in the midst of the earth. ²³ Thus I will put a division^[a] between my people and your people. By tomorrow shall this sign be.”’”