Following are a number of back-translations as well as a sample translation for translators of Deuteronomy 33:18:

• Kupsabiny: “He said about the clan of Zebulun and that of Issachar,
  ‘May the clan of Zebulun prosper when (he/they) go out,
  and may also Issachar prosper in the(ir) tents.” (Source: Kupsabiny Back Translation)
• Newari: “Concerning the tribes of Zebulun and Issachar he said,
  "Zebulun, you are to rejoice when you go out hither and thither
  and Issachar, you are to rejoice inside your tents.” (Source: Newari Back Translation)
• Hiligaynon: “Moises said concerning the tribe of Zebulun and Issachar,
  ‘Rejoice the tribe of Zebulun, for they will-prosper in their business in other places.
  Rejoice also the tribe of Issachar for they will-prosper in their place.” (Source: Hiligaynon Back Translation)
• English: “‘ say this about the tribes of Zebulun and Issachar:
  I desire/hope that the people of Zebulun will prosper in their travels across the seas,
  and that the people of Issachar will prosper while they stay at home and take care of their cattle and crops.” (Source: Translation for Translators)