Following are a number of back-translations as well as a sample translation for translators of Proverbs 15:3:

• Kupsabiny: “There is no person who can hide from God,
  because God sees/watches on sin/evil and good that a person does.” (Source: Kupsabiny Back Translation)
• Newari: “The eyes of the Lord
  see everything everywhere
  He has been watching both groups,
  the good and the wicked.” (Source: Newari Back Translation)
• Hiligaynon: “The LORD sees all, in every/[lit. wherever] place. He looks what the wicked and the righteous are-doing.” (Source: Hiligaynon Back Translation)
• Kankanaey: “God keeps-seeing all places and he keeps-seeing all who do good and evil.” (Source: Kankanaey Back Translation)
• English: “Yahweh sees what is happening everywhere;
  he observes what bad people do as well as what good people do.” (Source: Translation for Translators)