Exodus 8:1-6 GW

1 Then the LORD said to Moses, "Go to Pharaoh, and tell him, 'This is what the LORD says: Let my people go to worship me.
2 If you refuse to let them go, I will bring a plague of frogs on your whole country.
3 The Nile River will swarm with frogs. They will come into your palace, into your bedroom, on your bed, into the houses of your officials, on your people, into your ovens and into your mixing bowls.
4 The frogs will jump on you, on your people, and on all your officials.'"
5 Then the LORD said to Moses, "Tell Aaron, 'Hold your staff over the rivers, canals, and ponds. This will bring frogs onto the land.'"
6 So Aaron held his staff over the waters of Egypt. The frogs came up and covered the land of Egypt.