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

• Kupsabiny: “A fierce/terrifying noise hits their ears,
  suddenly enemies raid (them).” (Source: Kupsabiny Back Translation)
• Newari: “Dreadful sounds are resounding in his ears.
  Even in times of peace, those who plunder will attack him.” (Source: Newari Back Translation)
• Hiligaynon: “He is always nervous/worried/anxious, and even in times that there is no disaster he is nervous/worried/anxious that he might be-attacked by robbers.” (Source: Hiligaynon Back Translation)