Exodus 8:7-9

7But the magicians used their magic to do the same thing. They also made frogs come up on the land of Egypt.

8Then Pharaoh called Moses and Aaron to come to him. He said, ‘Pray to the Lord. Ask him to remove the frogs from me and from my people. Then I will let your people go. They can offer sacrifices to the Lord.’

9Moses said to Pharaoh, ‘I will let you choose the time when I should pray to God. Then I will ask God to do this for you, for your servants and for your people. I will ask God to remove the frogs from you and from all your houses. The frogs will remain only in the Nile river.’