Following are a number of back-translations as well as a sample translation for translators of Isaiah 47:15:

• Kupsabiny: “That is how it will be with those people
  whom you have trusted from childhood.
  Each one will abandon you and he will go his own way,
  and there is no one who can save you.’” (Source: Kupsabiny Back Translation)
• Newari: “They will only be able to do this much for you, those with whom you have worked,
  and who have been doing business from the time of [your] childhood.
  They have all be going down the wrong road.
  No one will be able to deliver you.” (Source: Newari Back Translation)
• Hiligaynon: “Well/So what can- the people whom you (sing.) ask for counsel since you (sing.) (were) still a child -do? Each one of them has-gone-astray and they can- not -save you.” (Source: Hiligaynon Back Translation)