Following are a number of back-translations as well as a sample translation for translators of Isaiah 63:16:

• Kupsabiny: “You are our father.
  Abraham cannot help us
  and Jacob cannot save us.
  You are God who is our father,
  and you know that from old times that you are the one who saves us.” (Source: Kupsabiny Back Translation)
• Newari: “But you are our father.
  Even if Abraham did not recognize us and Israel did not accept us,
  You, O LORD are our father.
  From earlier times, your name is our redeemer.” (Source: Newari Back Translation)
• Hiligaynon: “For you (sing.) are our (excl.) Father even if Abraham and Jacob will- not -acknowledge us (excl.) as their descendants. Yes, you (sing.), LORD, our (excl.) Father. You (sing.) are our (excl.) Savior from the beginning.” (Source: Hiligaynon Back Translation)