Following are a number of back-translations as well as a sample translation for translators of Job 31:40:

• Kupsabiny: “then instead of wheat and barley growing there it should be
  thorntrees and a bush growing.’
  The speech of Job ends here.” (Source: Kupsabiny Back Translation)
• Newari: “then let the thistles grow instead of barley,
  and weeds instead of wheat.
  The words of Job are ended.” (Source: Newari Back Translation)
• Hiligaynon: “may-it-happen that would-grow on my land thorny bushes and grass instead of wheat and barley.’
  The speech of Job ended here.” (Source: Hiligaynon Back Translation)