Following are a number of back-translations as well as a sample translation for translators of Proverbs 28:9:

• Kupsabiny: “A person who does not obey the law,
  God does not listen to his prayers.” (Source: Kupsabiny Back Translation)
• Newari: “Even the prayers of those who do not obey the law
  are repulsive to God.” (Source: Newari Back Translation)
• Hiligaynon: “Whoever does not obey the Law, God will-detest even his prayer.” (Source: Hiligaynon Back Translation)
• Kankanaey: “If someone does not pay-attention-to the law of God, God will also hate even his prayers.” (Source: Kankanaey Back Translation)
• English: “If people do not obey God’s laws,
  God detests their prayers/considers that their prayers stink.” (Source: Translation for Translators)