Following are a number of back-translations as well as a sample translation for translators of Isaiah 9:20:

• Kupsabiny: “People will rob things for themselves
  in all directions.
  Those people will not become satisfied
  and they shall eat even their own intestines.” (Source: Kupsabiny Back Translation)
• Newari: “They will gobble to the right
  and yet still be hungry.
  They will eat [the one] to the left and still not be satisfied.
  They will eat the flesh of all their own offspring,” (Source: Newari Back Translation)
• Hiligaynon: “Whatever food they will-see around they will-take and eat-it, but they will- still not -be-satisfied. They will-eat including their children.” (Source: Hiligaynon Back Translation)