Following are a number of back-translations as well as a sample translation for translators of Numbers 24:21:

• Kupsabiny: “After that, Balaam distantly saw the Kenites. He narrated proverbs/saying that God told him,
  ‘You think that you will not be found,
  because you live on top of a hill.” (Source: Kupsabiny Back Translation)
• Newari: “Then, looking towards the Kenites, he spoke words in this way,
  "You seem to be strong,
  your house has been built in the rocks.” (Source: Newari Back Translation)
• Hiligaynon: “Then Balaam again saw in his vision the Kenhanon and he said: ‘Your (plur.) dwelling-place is firm/strong, for this is situated/set on a rocky mountain.” (Source: Hiligaynon Back Translation)
• English: “Then he looked out over the area where the Ken people-group lived, and he prophesied this:
  ‘You think that the place where you live is secure/safe
  like a nest that is made in the cliffs ,” (Source: Translation for Translators)