Exodus 8:3

8:3 The Nile will swarm4 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.5

4	sn The choice of this verb שָׁרַץ (sharats) recalls its use in the creation account (Gen 1:20). The water would be swarming with frogs in abundance. There is a hint here of this being a creative work of God as well.
5	sn This verse lists places the frogs will go. The first three are for Pharaoh personally—they are going to touch his private life. Then the text mentions the servants and the people. Mention of the ovens and kneading bowls (or troughs) of the people indicates that food would be contaminated and that it would be impossible even to eat a meal in peace.