1 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.
2 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.