Following are a number of back-translations as well as a sample translation for translators of Proverbs 17:7:

• Kupsabiny: “A foolish person does not have advice (to give)
  and it is not fitting for a ruler to speak lies.” (Source: Kupsabiny Back Translation)
• Newari: “Lying talk is not appropriate for important people,
  Good news is not appropriate from the mouths of fools.” (Source: Newari Back Translation)
• Hiligaynon: “(It is) not fitting for a fool to speak good words, and even more so (it is) not fitting that a leader/[lit. head] will-lie.” (Source: Hiligaynon Back Translation)
• Kankanaey: “The pleasant-to-hear words, it is not suitable to the foolish-one, but it is even-more improper if a respected person tells-lies.” (Source: Kankanaey Back Translation)
• English: “Fine/Eloquent speech is not suitable for foolish people to say,
  just like lies are not suitable for rulers to say.” (Source: Translation for Translators)