出埃及记 8:9

And Moses said unto Pharaoh, Have thou this glory over me: against what time shall I entreat for thee, and for thy servants, and for thy people, that the frogs be destroyed from thee and thy houses, and remain in the river only?

And Moses saith to Pharaoh, `Beautify thyself over me; when do I make supplication for thee, and for thy servants, and for thy people, to cut off the frogs from thee and from thy houses--only in the River they do remain?'

And Moses said, I will let you have the honour of saying when I am to make prayer for you and your servants and your people, that the frogs may be sent away from you and your houses, and be only in the Nile.