Following are a number of back-translations as well as a sample translation for translators of Job 12:9:

• Kupsabiny: “Which among these things do not know
  that it is God who created everything?” (Source: Kupsabiny Back Translation)
• Newari: “Among all of these, which of them does not know
  that the LORD has made all this with His own hands?” (Source: Newari Back Translation)
• Hiligaynon: “For all of them know this that the LORD has-done.” (Source: Hiligaynon Back Translation)
• English: “All of them certainly know that it is Yahweh who has made them with his hands.” (Source: Translation for Translators)