Exodus 8:2-7
8:2 But if you refuse to release them, then I am going to plague all your territory with frogs.
8:3 The Nile will swarm with frogs, and they will come up and go into your house, in your bedroom, and on your bed, and into the houses of your servants and your people, and into your ovens and your kneading troughs.
8:4 Frogs will come up against you, your people, and all your servants.”’”
8:5 The Lord spoke to Moses, “Tell Aaron, ‘Extend your hand with your staff over the rivers, over the canals, and over the ponds, and bring the frogs up over the land of Egypt.’”
8:6 So Aaron extended his hand over the waters of Egypt, and frogs came up and covered the land of Egypt.
8:7 The magicians did the same with their secret arts and brought up frogs on the land of Egypt too.