Exodus 8:11-15

11And the frogs shall depart from you, from your houses, from your servants, and from your people. They shall remain in the river only.”

12Then Moses and Aaron went out from Pharaoh. And Moses cried out to the Lord concerning the frogs which He had brought against Pharaoh.

13So the Lord did according to the word of Moses. And the frogs died out of the houses, out of the courtyards, and out of the fields.

14They gathered them together in heaps, and the land stank.

15But when Pharaoh saw that there was relief, he hardened his heart and did not heed them, as the Lord had said.