Following are a number of back-translations as well as a sample translation for translators of Isaiah 25:3:

• Kupsabiny: “So, the people of those fierce countries are praising you
  so that the cities of those ruthless/arrogant countries can obey you,” (Source: Kupsabiny Back Translation)
• Newari: “So strong nations will praise you.
  The cities of merciless nations will honor you.” (Source: Newari Back Translation)
• Hiligaynon: “Therefore you (sing.) will-be-praised by the powerful people, and respected by the cruel/ruthless nations.” (Source: Hiligaynon Back Translation)