Exodus 8:1-6

1And Jehovah spake unto Moses, Go in unto Pharaoh, and say unto him, Thus saith Jehovah, Let my people go, that they may serve me.

2And if thou refuse to let them go, behold, I will smite all thy borders with frogs:

3and the river shall swarm with frogs, which shall go up and come into thy house, and into thy bedchamber, and upon thy bed, and into the house of thy servants, and upon thy people, and into thine ovens, and into thy kneading-troughs:

4and the frogs shall come up both upon thee, and upon thy people, and upon all thy servants.

5And Jehovah said unto Moses, Say unto Aaron, Stretch forth thy hand with thy rod over the rivers, over the streams, and over the pools, and cause frogs to come up upon the land of Egypt.

6And Aaron stretched out his hand over the waters of Egypt; and the frogs came up, and covered the land of Egypt.