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

• Kupsabiny: “The house of Jacob is not to be threatened,
  no witchcraft touches the people of Israel.
  Now people will say,
  ‘Look (plur.) at that God has done for his people’” (Source: Kupsabiny Back Translation)
• Newari: “No curse can even touch Jacob,
  No sorcery can do anything to Israel.
  Now concerning Jacob it will be spoken like this,
  ‘Look at it — What God has done for Israel!
  what amazing works [He] has done!’” (Source: Newari Back Translation)
• Hiligaynon: “There-is-no sorcerer or enchanter that can-harm them. So the people will-say about Israel, ‘How marvelous what God did in Israel.’” (Source: Hiligaynon Back Translation)
• English: “When people curse the descendants of Jacob, they will not be harmed;
  when people work sorcery on them, it will have no power.
  So now people will say about the descendants of Jacob,
  ‘God has done wonderful things for the Israelis!’” (Source: Translation for Translators)