Following are a number of back-translations as well as a sample translation for translators of Deuteronomy 32:31:

• Kupsabiny: “Even our enemies have realized,
  that their gods do not have power like our God.” (Source: Kupsabiny Back Translation)
• Newari: “For their gods are not like our strong defender
  as even our enemies consider.” (Source: Newari Back Translation)
• Hiligaynon: “For the rock of refuge of our (incl.) enemies is not the same with our (incl.) rock of refuge, and even them they knew it.” (Source: Hiligaynon Back Translation)
• English: “Your enemies know that their gods are not powerful like Yahweh, our God,
  so their gods could not have defeated us Israelis.” (Source: Translation for Translators)