Exodus 8:9-11

Amplified Bible

⁹ And Moses said to Pharaoh, “I am entirely at your service: when shall I plead [with the Lord] for you and your servants and your people, so that the frogs may leave you and your houses and remain only in the Nile?”

¹⁰ Then Pharaoh said, “^[a]Tomorrow.” Moses replied, “May it be as you say, so that you may know [without any doubt] and acknowledge that there is no one like the Lord our God. ¹¹ The frogs will leave you and your houses and leave your servants and your people; they will remain only in the Nile.”