Following are a number of back-translations as well as a sample translation for translators of Jeremiah 49:14:

• Kupsabiny: “I have received a word that God sent to me about Edom. He told me to say to (it/Edom), ‘A man has been sent to go and tell the communities/nations,
  ‘Muster your soldiers and prepare them
  to fight against Edom.’” (Source: Kupsabiny Back Translation)
• Hiligaynon: “I have-heard-the-news from the LORD, that he sent a messenger to the nations to prepare them for battle and to challenge them to attack the nation of Edom.” (Source: Hiligaynon Back Translation)
• English: “I heard this message from Yahweh:
  ‘I have sent an ambassador to many nations,
  to tell them to gather together to attack Edom.
  They must prepare for battle!’” (Source: Translation for Translators)