Following are a number of back-translations as well as a sample translation for translators of Isaiah 25:9:

• Kupsabiny: “On that day people will say,
  ‘Please, this is our God!
  We trusted in him, and he has saved us.
  God is the one that we trusted in.
  Let us rejoice because he has saved us.” (Source: Kupsabiny Back Translation)
• Newari: “On that day everyone will say,
  "Surely he is our God.
  We have put [our] hope in him,
  and he has saved us.
  He is LORD,
  We have put our hope in him.
  Because of the salvation he has done,
  Let us be happy and rejoice."” (Source: Newari Back Translation)
• Hiligaynon: “If this will- now -happen, the people will-say: ‘He is our (incl.) God! We (incl.) trusted in him, and he saved us (incl.). He the LORD whom we (incl.) trusted. Let- us (incl.) -rejoice and be-glad for he saved us (incl.).’” (Source: Hiligaynon Back Translation)