12. So Moses and Aaron went out from Pharaoh, and Moses cried to the Lord [as he had agreed with Pharaoh] concerning the frogs which He had brought against him.
13. And the Lord did according to the word of Moses, and the frogs died out of the houses, out of the courtyards and villages, and out of the fields.
14. [The people] gathered them together in heaps, and the land was loathsome and stank.
15. But when Pharaoh saw that there was temporary relief, he made his heart stubborn and hard and would not listen or heed them, just as the Lord had said.
16. Then the Lord said to Moses, Say to Aaron, Stretch out your rod and strike the dust of the ground, that it may become biting gnats or mosquitoes throughout all the land of Egypt.