Following are a number of back-translations as well as a sample translation for translators of Isaiah 8:15:

• Kupsabiny: “Many people will experience stumbling,
  they will crash themselves and break.
  A trap will catch those people and they will be taken away.” (Source: Kupsabiny Back Translation)
• Newari: “Many people will stumble, fall down,
  and will be crushed.
  They will be trapped and will be caught and imprisoned."” (Source: Newari Back Translation)
• Hiligaynon: “Many of them would-stumble, would-fall, and would-be-destroyed. They would-be-trapped and captured.’” (Source: Hiligaynon Back Translation)
• English: “Many people will stumble and fall down
  and never get up again.
  They will experience great troubles;
  they will be captured by their enemies.’” (Source: Translation for Translators)