Following are a number of back-translations as well as a sample translation for translators of Isaiah 25:12:

• Kupsabiny: “The tall walls shall be torn down
  and break into pieces on the ground.” (Source: Kupsabiny Back Translation)
• Newari: “He will tear down your enclosure walls which have very high fortresses,
  and they will be thrown to the ground and be made to settle in the dust.” (Source: Newari Back Translation)
• Hiligaynon: “He will-break-down their high and strong stone-walls until it will-spread-out on the ground.” (Source: Hiligaynon Back Translation)