Following are a number of back-translations as well as a sample translation for translators of Jeremiah 50:3:

• Kupsabiny: “A community from the North has arrived to fight (it/them),
  and smash their land to become a deserted place.
  No person shall go and live there
  because people and animals will flee to a faraway place.’” (Source: Kupsabiny Back Translation)
• Hiligaynon: “For Babilonia will-be-attacked by a nation from the north, and this will-become a desolate/lonely place. No one will-live here for the people and animals will-flee.” (Source: Hiligaynon Back Translation)
• English: “The army of a nation will come from the north to attack Babylon
  and destroy the city very thoroughly,
  with the result that no one will live there again.
  Both people and animals will run away.’” (Source: Translation for Translators)