Following are a number of back-translations as well as a sample translation for translators of Jeremiah 30:14:

• Kupsabiny: “All those who worked with you have forgotten you
  who did not consider you of any value.
  I fought against you like a enemy would do
  and I punished you severely,
  because of your big mistake
  and your very many sins.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “Your allied nations have forgotten you already; they no longer pay-any-attention to you. I have attacked you like the attacking of the enemy. My punishment to you is very cruel because your sins are great and very many.” (Source: Hiligaynon Back Translation)
• English: “All your allies have deserted you
  and they do not want to help you any more.
  It is true that I have punished you severely,
  like your enemies would wound you,
  because you have committed many sins
  and you are very guilty.” (Source: Translation for Translators)