Following are a number of back-translations as well as a sample translation for translators of Isaiah 48:3:

• Kupsabiny: “God is saying,
  ‘I told you long ago the things that were going to happen.
  Those words came from my mouth.
  Then I made (it) come to pass quickly
  and it happened like I had announced.” (Source: Kupsabiny Back Translation)
• Newari: “Listen to this — Long ago I told what will happen before.
  I revealed it with my mouth,
  and I instructed them.
  I did it suddenly,
  and all these happened just like I said.” (Source: Newari Back Translation)
• Hiligaynon: “He says to you (plur.), ‘I already prophesied in the time-past what will-happen in the future. And suddenly I have-fulfilled it.” (Source: Hiligaynon Back Translation)