Following are a number of back-translations as well as a sample translation for translators of Job 38:21:

• Kupsabiny: “You are the one who should know, because you are an important elder
  and you were there when the world was created.” (Source: Kupsabiny Back Translation)
• Newari: “Surely you are able to know all these matters, for you had already been born at that time.
  What a long life you have had!” (Source: Newari Back Translation)
• Hiligaynon: “Surely/Indeed you (sing.) know! For you (sing.) indeed have-been-born in the past-time and you (sing.) were already in the world long-time-ago.” (Source: Hiligaynon Back Translation)