Following are a number of back-translations as well as a sample translation for translators of Isaiah 19:4:

• Kupsabiny: “I shall give the Egyptians a king that dictates/forces them,
  and I shall make an arrogant person rule over them.’” (Source: Kupsabiny Back Translation)
• Newari: “I will deliver the Egyptians
  into the hands of a very evil ruler.
  A king who has no mercy will rule over them.
  LORD, the LORD Almighty has spoken,” (Source: Newari Back Translation)
• Hiligaynon: “I will-cause- them -to-be-under-the-jurisdiction of a cruel king.’ This is what the LORD Almighty has-said.” (Source: Hiligaynon Back Translation)
• English: “Then I will enable someone who will treat them very cruelly to become their king.’
  That is what I, the Commander of the armies of angels, say.” (Source: Translation for Translators)