Following are a number of back-translations as well as a sample translation for translators of Jeremiah 49:38:

• Kupsabiny: “I will destroy rulers/kings and leaders
  and install my king there in Elam.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “I will-destroy the king and the officials of Elam, and I will-reign in that place.” (Source: Hiligaynon Back Translation)
• English: “I, Yahweh, will judge them there ,
  and then I will get rid of their king and his officials.” (Source: Translation for Translators)