Exodus 8:21-23

Amplified Bible, Classic Edition

²¹ Else, if you will not let My people go, behold, I will send swarms [of bloodsucking gadflies] upon you, your servants, and your people, and into your houses; and the houses of the Egyptians shall be full of swarms [of bloodsucking gadflies], and also the ground on which they stand.

²² But on that day I will sever and set apart the land of Goshen in which My people dwell, that no swarms [of gadflies] shall be there, so that you may know that I am the Lord in the midst of the earth.

²³ And I will put a division and a sign of deliverance between My people and your people. By tomorrow shall this sign be in evidence.