Exodus 8:31 in the King James Version
And the LORD did according to the word of Moses; and he removed the swarms of flies from Pharaoh, from his servants, and from his people; there remained not one.
Context
30 Moses went out from Pharaoh, and prayed to the LORD.
31 The LORD did according to the word of Moses, and he removed the swarms of flies from Pharaoh, from his servants, and from his people. There remained not one.
32 Pharaoh hardened his heart this time also, and he didn’t let the people go.