Following are a number of back-translations as well as a sample translation for translators of Proverbs 22:12:

• Kupsabiny: “God keeps/guards the truth,
  and destroys/overcomes the liars.” (Source: Kupsabiny Back Translation)
• Newari: “The Lord cares for those
  who keep good thoughts in [their] hearts,
  and He disappoints the plans of liars.” (Source: Newari Back Translation)
• Hiligaynon: “The LORD carefully guards the wise, but he destroys the plans of the unfaithful/deceitful.” (Source: Hiligaynon Back Translation)
• Kankanaey: “God sees-to-it that the truth is confirmed, but he ruins the plans of the liars and tricky-ones.” (Source: Kankanaey Back Translation)
• English: “Yahweh watches over/takes care of those who have good understanding/sense,
  but he ruins the plans/affairs of those who always try to deceive others.” (Source: Translation for Translators)