Following are a number of back-translations as well as a sample translation for translators of Jeremiah 49:37:

• Kupsabiny: “I shall harass the people of Elam
  in front of enemies who seek/want their lives.
  I shall send a huge calamity on (them)
  and pour out my fierce anger on them.
  I will pursue those people and fight against them
  until they are completely destroyed.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “I will-destroy them through their enemies who want to kill them. Yes, I will-destroy them in my fierce anger. I, the LORD, is-saying that I will-have- them -attack by the enemies until they will- all -vanish.” (Source: Hiligaynon Back Translation)
• English: “Because I am very angry with the people of Elam,
  I will enable their enemies to smash Elam;
  I will cause the people of Elam to experience great disasters.
  I will enable their enemies, who want to kill them, to pursue them and kill them with swords
  until I completely get rid of all of them.” (Source: Translation for Translators)