Following are a number of back-translations as well as a sample translation for translators of Proverbs 16:10:

• Kupsabiny: “A ruler/king ought to be saying words that come from God,
  and he should not declare/decide words/matters of lies.” (Source: Kupsabiny Back Translation)
• Newari: “The king speaks as one who has authority.
  His words are always right.” (Source: Newari Back Translation)
• Hiligaynon: “When a king judges that-which is-being-guided by God, his judgment is always right.” (Source: Hiligaynon Back Translation)
• Kankanaey: “A king does not make-mistakes in what he decides/gives-as-verdict, because it is God who causes-him-to-think.” (Source: Kankanaey Back Translation)
• English: “If God directs what a king says,
  what he decides is always right/fair.” (Source: Translation for Translators)