Following are a number of back-translations as well as a sample translation for translators of Deuteronomy 33:28:

• Kupsabiny: “May the people of Israel stay/live in peace
  and the grandchildren of Jacob be prosperous/rejoice.
  May they live in a land of food and wine,
  a land where rain sprinkles on it to moisten it.” (Source: Kupsabiny Back Translation)
• Newari: “And the Israelites will be living in peace,
  in a land of grain and new wine,
  in a place where dew comes down from the sky,
  where only Jacob’s descendants will be.” (Source: Newari Back Translation)
• Hiligaynon: “Therefore Israel will-live away from disaster, in the land abundant with wheat and wine/[lit. juice of grapes],
  and where the dew from heaven gives water to the ground.” (Source: Hiligaynon Back Translation)
• English: “So, you Israeli people will live safely;
  you descendants of Jacob will not be disturbed by others;
  in the land where you will live, there will be plenty of grain and wine,
  and there will be plenty of rain.” (Source: Translation for Translators)