Exodus 8:11-15

11And the frogs shall depart from thee, and from thy houses, and from thy servants, and from thy people; they shall remain in the river only. 12And Moses and Aaron went out from Pharaoh: and Moses cried unto Jehovah concerning the frogs which he had brought upon Pharaoh. 13And Jehovah did according to the word of Moses; and the frogs died out of the houses, out of the courts, and out of the fields. 14And they gathered them together in heaps; and the land stank. 15But when Pharaoh saw that there was respite, he hardened his heart, and hearkened not unto them, as Jehovah had spoken.