Following are a number of back-translations as well as a sample translation for translators of Job 39:23:

• Kupsabiny: “The things of the battle (weapons) make noise
  those that the people who ride the horses have with them
  and they flash in the sun.” (Source: Kupsabiny Back Translation)
• Newari: “The quiver moves rattling against it
  and there the spear and sword shine, sparkling.” (Source: Newari Back Translation)
• Hiligaynon: “The weapons riding on him are-rattleing and are-flashing.” (Source: Hiligaynon Back Translation)
• English: “They are not disturbed by raging/swiftly-flowing rivers;
  they are not even disturbed/frightened when rivers like the Jordan River rush over them.” (Source: Translation for Translators)