Exodus 8:2-7

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

3And the river shall swarm with frogs, and they shall go up and come into thy house, and into thy bedroom, and upon thy bed, and into the house of thy bondmen, 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 bondmen.

5And Jehovah said to Moses, Say unto Aaron, Stretch out thy hand with thy staff over the streams, over the rivers, and over the ponds, and cause frogs to come up on 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.

7And the scribes did so with their sorceries, and brought up frogs on the land of Egypt.