Following are a number of back-translations as well as a sample translation for translators of Obadiah 1:8:

• Kupsabiny: “God is saying, ‘In that day, I will punish Edom, I will destroy every person who has experience/understanding and the one who is wise.” (Source: Kupsabiny Back Translation)
• Newari: “On that day the LORD says,
  "I will destroy all the wise men among the people of Edom.
  I will destroy all the people who know many things in their mountains.” (Source: Newari Back Translation)
• Hiligaynon: “I, the LORD, say that at the time that I will-now -punish you (plur.), I will-destroy your (plur.) wise men. The wisdom in Edom which is-called Mountain of Esau will-vanish.” (Source: Hiligaynon Back Translation)
• English: “I, Yahweh, declare that at the time that I destroy Edom,
  I will punish the men who live in those cliffs who thought that they were wise.” (Source: Translation for Translators)