Following are a number of back-translations as well as a sample translation for translators of Jeremiah 12:1:

• Kupsabiny: “You always stand on truth, oh God,
  when I bring my grievances to you.
  But I want a word (from you),
  why do sinners prosper?
  Why do all the bad people enjoy life?” (Source: Kupsabiny Back Translation)
• Hiligaynon: “O LORD, if I have a complaint against you (sing.), (it) come-out that you (sing.) right. But now I have a question about your (sing.) justice: Why are the wicked-ones prosper? Why are the people who betray you (sing.) live peacefully/at-ease?” (Source: Hiligaynon Back Translation)