Following are a number of back-translations as well as a sample translation for translators of Isaiah 51:1:

• Kupsabiny: “God is saying,
  Listen to me all you who want righteousness,
  all you obey God.
  Think about that stone/rock you were cut from,
  and think about where you came from.” (Source: Kupsabiny Back Translation)
• Newari: “O [you] who go following righteousness and who seek the LORD,
  listen to my words!
  Look the rock from which you were made
  and which was cut and from which you were taken. ” (Source: Newari Back Translation)
• Hiligaynon: “The LORD said, ‘[You (plur.)] listen to me, you (plur.) who want to-be-saved and take-refuge on me. You (plur.) remember Abraham and Sara your (plur.) ancestors/forefathers. They are like a rock from where you (plur.) were-chipped-from or a hole/break-through where you (plur.) have-been-digged. When I called Abraham he was alone, but I blessed him and have-given (him) many descendants.” (Source: Hiligaynon Back Translation)