Following are a number of back-translations as well as a sample translation for translators of Isaiah 29:1:

• Kupsabiny: “God is saying,
  ‘Ariel is in a bad position,
  that city named after David.
  This year shall come and another (year) pass by
  feasts shall be celebrated in all this time.” (Source: Kupsabiny Back Translation)
• Newari: “Alas to you Ariel, Ariel,
  City where David made camp!
  Add year to year
  and let cycle of festivals go on.” (Source: Newari Back Translation)
• Hiligaynon: “The LORD said, ‘Woe to Jerusalem, the city where David had-dwelled! Okay/[Sige], this city will-celebrate her feast every year.” (Source: Hiligaynon Back Translation)
• English: “This is a message from Yahweh:
  Terrible things will happen to Jerusalem, the city where King David lived.
  You people continue to celebrate your festivals each year.” (Source: Translation for Translators)