Following are a number of back-translations as well as a sample translation for translators of Isaiah 66:3:

• Kupsabiny: “A person sacrifices a bull
  and then murders (somebody).
  A person sacrifices a sheep
  and then offers a dog.
  A person gives sacrifices of food
  and then offers the blood of pigs to idols.
  A person makes sweet smelling sacrifices
  and then he praises the idols.
  Every person does what his stomach wants
  and is happy for his sins.” (Source: Kupsabiny Back Translation)
• Newari: “But those who do the sacrifice of a bull like those who kill a person.
  As for those who offer a lamb [as] sacrifice, it is just like breaking the neck of a dog.
  Those who offer grain, it’s just like offering pig’s blood.
  Those who kindle incense as a memorial, it is just like doing idol worship.
  They have chosen [to go] their own way.
  and they rejoice in their repulsive work.” (Source: Newari Back Translation)
• Hiligaynon: “But this is my treatment to the people who follow only their desire and rejoice in what they do which are-detestable: If they slaughter a cow for sacrifice, I will-consider it as-if they killed a man. If they sacrifice a sheep, I will-consider it as-if they killed a dog. If they offer gift offering, I will-consider it as-if they offered blood of a pig. And if they burn incense to remember me, I will-consider it as-if they blessed the little-gods.” (Source: Hiligaynon Back Translation)
• English: “You have enjoyed continually doing the things that you want to do:
  Some of you slaughter oxen to sacrifice them to me,
  but you also bring human sacrifices to your idols!
  You sacrifice lambs to me,
  but you kill dogs to offer them to your gods.
  You offer grain to me,
  but you also bring pigs’ blood to your idols.
  You burn incense to me,
  but you also praise your idols.
  You enjoy doing those disgusting things.” (Source: Translation for Translators)