Following are a number of back-translations as well as a sample translation for translators of Isaiah 51:7:

• Kupsabiny: “Listen to me you who know righteousness,
  you who have taken my teaching to head.
  Do not fear when others hate/despise you,
  and do not be cowards when you are looked down upon.” (Source: Kupsabiny Back Translation)
• Newari: “Whoever knows righteousness, listen to my words!
  and whoever has my instruction in his heart,
  do not be afraid that people will accuse [you],
  and do not be afraid that they will insult [you]. ” (Source: Newari Back Translation)
• Hiligaynon: “[You (plur.)] listen to me, you (plur.) who knew what is right and obey my law! You (plur.) do- not -be-afraid of the putting-to-shame or the mocking of the people to you (plur.).” (Source: Hiligaynon Back Translation)