Following are a number of back-translations as well as a sample translation for translators of Isaiah 27:1:

• Kupsabiny: “In those days,
  God will take hold of his sword
  that is heavy/strong and sharp.
  He will punish Leviathan,
  that snake that is quick and folded around itself.
  God will kill that monster
  of the ocean.” (Source: Kupsabiny Back Translation)
• Newari: “On that day the LORD,
  with his dreadful, dangerous power and extremely sharp sword
  will punish gliding coiling serpent leviathan
  and will kill that big python of the sea.” (Source: Newari Back Translation)
• Hiligaynon: “At that time, the LORD will-use his sharp and powerful sword to kill the Leviatan, the gliding dragon in the sea.” (Source: Hiligaynon Back Translation)