Following are a number of back-translations as well as a sample translation for translators of Isaiah 44:8:

• Kupsabiny: “Please, do (plur.) not tremble, do not be afraid!
  Have I not told you (plur.) from old times what is going to happen ahead?
  You are my witnesses!
  Is there any other God apart from me?
  There is no other who guards you apart from me,
  and I do not know any other protector for you.’” (Source: Kupsabiny Back Translation)
• Newari: “From long ago until now haven’t I told you everything that would happen?
  So do not be afraid or tremble with fear.
  You are my witnesses. What! Except for me, is there any other God?
  No, there is no other rock, not one!"” (Source: Newari Back Translation)
• Hiligaynon: “You (plur.) do- not -be-afraid or be-nervous. Did- I not -let-known from the time-past my purpose on you (plur.)? You (plur.) yourselves are my witnesses. Is there other God besides me? None at-all! I know nothing of a rock that protects aside from me.” (Source: Hiligaynon Back Translation)