Following are a number of back-translations as well as a sample translation for translators of Jeremiah 5:3:

• Kupsabiny: “Oh, God,
  I know that you are searching for a righteous person.
  You hit/beat these people, and they did not feel the pain,
  you crushed them, but their heads were hard.
  They refused completely to turn around/away from their sins.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “Then I said, ‘O, LORD, is-it not that you (sing.) look for a man who is trustworthy? You (sing.) hurt your (sing.) people but they felt- no -pain. You (plur.) punished them, but they do- not want to-be-taught/disciplined. Their faces became-hard, and they no longer repent.’” (Source: Hiligaynon Back Translation)