In New Revised Standard Version this continues the sentence begun in verse 10. (See the discussion there.) The frogs shall depart is literally “the frogs will go away.” New Jewish Publication Society’s Tanakh has “The frogs shall retreat.” This suggests that the frogs will withdraw on their own power, in contrast with what actually happened according to verse 13. It is possible that Moses wanted the king to expect that the frogs were to go away just as they had come, with no mess to clean up. The causative form of the verb is not used, but it is certainly implied that the LORD would cause them to leave.

From you … and your people is literally a string of four prepositional phrases: “from you and from your houses and from your servants and from your people.” All the pronouns are singular. Moses mentions every person and every place that had been disturbed by the frogs, in order to emphasize that the plague will be completely stopped. Good News Translation does not mention your houses, but this may be implied from the rendering “You, your officials, and your people will be rid of the frogs.”

They shall be left only in the Nile repeats the same words used in verse 9. This suggests to the king that everything will return to normal. But see the following verses.

Quoted with permission from Osborn, Noel D. and Hatton, Howard A. A Handbook on Exodus. (UBS Helps for Translators). New York: UBS, 1999. For this and other handbooks for translators see here .