Following are a number of back-translations as well as a sample translation for translators of Proverbs 21:12:

• Kupsabiny: “God knows how/where a sinner is,
  and (he) is able to destroy that sinner.” (Source: Kupsabiny Back Translation)
• Newari: “God, who is most righteous,
  knows all about what goes on
  in the house of the wicked,
  He brings them to ruin.” (Source: Newari Back Translation)
• Hiligaynon: “The righteous God knows what the household of the wicked are-doing, and he will-punish them.” (Source: Hiligaynon Back Translation)
• Kankanaey: “God is just/righteous. He knows what sinners are doing and he will punish them.” (Source: Kankanaey Back Translation)
• English: “God, the one who is completely righteous, knows what happens inside the houses of wicked people,
  and he will cause those people to be completely ruined/destroyed.” (Source: Translation for Translators)