Following are a number of back-translations as well as a sample translation for translators of Isaiah 50:3:

• Kupsabiny: “I cause the sky/heaven to become dark
  like when it is covered by a cloth.” (Source: Kupsabiny Back Translation)
• Newari: “I cover the sky with darkness,
  and put sackcloth on it."” (Source: Newari Back Translation)
• Hiligaynon: “I am also able-to-cause- the heaven -to-become-dark like the darkness of a cloth for mourning.’” (Source: Hiligaynon Back Translation)
• English: “I cause the sky to become dark,
  as though it was wearing black clothes because it was mourning because someone had died.’” (Source: Translation for Translators)