Following are a number of back-translations as well as a sample translation for translators of Isaiah 43:27:

• Kupsabiny: “Also your forefathers of the past rebelled
  and also your leaders disobeyed me.” (Source: Kupsabiny Back Translation)
• Newari: “The father of your nation sinned,
  and your leaders rebelled against me,” (Source: Newari Back Translation)
• Hiligaynon: “Your (sing.) first ancestors have-sinned, and your (sing.) leaders/[lit. heads] rebelled-against me.” (Source: Hiligaynon Back Translation)