Following are a number of back-translations as well as a sample translation for translators of Isaiah 30:28:

• Kupsabiny: “His anger is like a river that bursts its banks
  and reaches to the neck of a person.
  He sifts communities in order to punish them
  and he pulls people along towards disaster/death.” (Source: Kupsabiny Back Translation)
• Newari: “His breath is like a flood that covers, reaching [up] to the neck.
  He will winnow the nations with the winnowing tray of destruction,
  and a bridle that will take the people down [lit.: on] the road of evil
  he will put in their mouths.” (Source: Newari Back Translation)
• Hiligaynon: “His breath is like a flood which reaches up to the neck. He destroys the nations as-if-like wheat being-sifted. They are like animals which are muzzled and dragged/pulled-away.” (Source: Hiligaynon Back Translation)
• English: “His breath is like a flood that covers his enemies up to their necks.
  He will separate the nations in order to destroy some of them;
  it is as though he will put hooks in their mouths and take them away.” (Source: Translation for Translators)