Following are a number of back-translations as well as a sample translation for translators of Isaiah 38:16:

• Kupsabiny: “Oh God, you are the one who gives life,
  please, heal me and let me continue to live.” (Source: Kupsabiny Back Translation)
• Newari: “O LORD, by such thing people live,
  and there is also life in my spirit,
  You healed my disease
  and enabled me to stay alive.” (Source: Newari Back Translation)
• Hiligaynon: “By this, Lord, the life of a man becomes-strong, and I myself became-strong. You (sing.) have-healed me and let me live.” (Source: Hiligaynon Back Translation)
• English: “Yahweh, the sufferings (OR, the promises) that you give are good,
  because what you do and what you say bring new life and health to us.
  And you restore/heal me
  and allow me to continue to live!” (Source: Translation for Translators)