Following are a number of back-translations as well as a sample translation for translators of Job 20:18:

• Kupsabiny: “(They) will return/give back everything they had worked hard for,
  so that they can never eat those things with joy,” (Source: Kupsabiny Back Translation)
• Newari: “He will have to give back what he worked for [lit.: his own labor] without eating,
  he will not get to use the wealth that he earned.” (Source: Newari Back Translation)
• Hiligaynon: “He can- not -receive a reward of his hard-work. He can- not -enjoy his wealth.” (Source: Hiligaynon Back Translation)
• English: “They will be forced to give back the things that they stole from the poor;
  they will not be able to continue to enjoy those things.
  They will not remain happy because of what they got from their businesses,” (Source: Translation for Translators)