Exodus 8:24

24 The LORD did so; and there came grievous swarms of flies into the house of Par`oh, and into his servants' houses: and in all the land of Mitzrayim the land was corrupted by reason of the swarms of flies.

Exodus 8:24 In-Context

22 I will set apart in that day the land of Goshen, in which my people dwell, that no swarms of flies shall be there; to the end you may know that I am the LORD in the midst of the eretz.
23 I will put a division between my people and your people: by tomorrow shall this sign be."'"
24 The LORD did so; and there came grievous swarms of flies into the house of Par`oh, and into his servants' houses: and in all the land of Mitzrayim the land was corrupted by reason of the swarms of flies.
25 Par`oh called for Moshe and for Aharon, and said, "Go, sacrifice to your God in the land!"
26 Moshe said, "It isn't appropriate to do so; for we shall sacrifice the abomination of the Mitzrim to the LORD our God. Behold, shall we sacrifice the abomination of the Mitzrim before their eyes, and won't they stone us?
The Hebrew Names Version is in the public domain.