Following are a number of back-translations as well as a sample translation for translators of Proverbs 11:18:

• Kupsabiny: “What (a) sinner thinks he had gotten is worth nothing,
  but the righteous person gets true blessings.” (Source: Kupsabiny Back Translation)
• Newari: “The wicked become rich only for a time.
  The righteous
  will have [their] reward forever.” (Source: Newari Back Translation)
• Hiligaynon: “A wicked man can- not -receive the true reward, but the (one)-who-is-doing right can-receive the true reward.” (Source: Hiligaynon Back Translation)
• Kankanaey: “Those who are doing evil, what they are able-to-gain is of no use, but the righteous/just, right/proper is their reward.” (Source: Kankanaey Back Translation)
• English: “If wicked people earn a lot of money, that will deceive them because they will not keep it for very long,
  but those who do what is right will surely be rewarded by God forever.” (Source: Translation for Translators)