Exodus 8:23-25

Amplified Bible, Classic Edition

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.

²⁴ And the Lord did so; and there came heavy and oppressive swarms [of bloodsucking gadflies] into the house of Pharaoh and his servants’ houses; and in all of Egypt the land was corrupted and ruined by reason of the great invasion [of gadflies].

²⁵ And Pharaoh called for Moses and Aaron, and said, Go, sacrifice to your God [here] in the land [of Egypt].