Following are a number of back-translations as well as a sample translation for translators of Jeremiah 5:29:

• Kupsabiny: “So, should I abandon/leave these people without punishing (them)
  for matters like these that they do?
  Should I leave a community like this without punishing (them)
  for the evil/sin they have done?” (Source: Kupsabiny Back Translation)
• Hiligaynon: “I, the LORD, says: Should I not punish them because of this? Should I not avenge the nation who is like this?” (Source: Hiligaynon Back Translation)
• English: “So I will certainly punish them for doing those things.
  I will certainly get revenge on their nation/do to their nation what they deserve.” (Source: Translation for Translators)