Following are a number of back-translations as well as a sample translation for translators of Ezekiel 21:15:

• Kupsabiny: “This sword will make my people lose heart and stumble. I shall frighten them in their city by this sword that flashes like lightning that is prepared to kill.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “They will-tremble in fear and many will-be-destroyed among them. I already placed the sword at the gates of their city to kill them. It is-flashing like lightning and ready to kill.” (Source: Hiligaynon Back Translation)
• English: “In order that people will be very much afraid
  and many people will be killed,
  I have placedsoldiers holding my swords at every city gate,
  ready to slaughter people.
  Those swords will flash like lightning,
  as the soldiers grasp them to slaughter people.” (Source: Translation for Translators)