Following are a number of back-translations as well as a sample translation for translators of Isaiah 13:3:

• Kupsabiny: “I have called for my soldiers who are fierce and honor/fear/obey me
  for my anger to punish people.” (Source: Kupsabiny Back Translation)
• Newari: “I have chosen these soldiers to do this work.
  I have called them to pour out my anger.
  They will rejoice because I will win.” (Source: Newari Back Translation)
• Hiligaynon: “I already commanded my chosen soldiers to punish the people whom I hate. These soldiers are-rejoicing for they really trust/hope/believe that I will-do this punishment.” (Source: Hiligaynon Back Translation)
• Burmese (translation by A. Judson): “I have commanded those whom I have sanctified.
  Those who rejoice because I have given them my glorious power, I have called my warriors to execute my anger.” (Source: John Hans de Jong in The Bible Translator 2017, p. 64ff. )
• English: “Yahweh says, ‘I have commanded those soldiers to do that;
  I have summoned the warriors whom I have chosen to punish the people of Babylon because of my being very angry with them,
  and those soldiers will be very proud when they do that.’” (Source: Translation for Translators)