Following are a number of back-translations as well as a sample translation for translators of Deuteronomy 33:13:

• Kupsabiny: “And about the clan of Joseph, he says,
  ‘Please, may God bless their land
  to get much rain
  and lots of water from the ground.” (Source: Kupsabiny Back Translation)
• Newari: “Concerning the tribe of Joseph he said
  "May the LORD bless their fields with the precious dew of the heavens
  and with water from the depths below.” (Source: Newari Back Translation)
• Hiligaynon: “Moises said concerning the tribe of Jose,
  ‘May the LORD will-bless their land and always send down rain and water from below the ground.” (Source: Hiligaynon Back Translation)
• English: “‘ say this about the tribes of Joseph:
  I desire/hope that Yahweh will bless their land
  by giving them rain/dew from the sky
  and water from deep in the ground,” (Source: Translation for Translators)