Following are a number of back-translations as well as a sample translation for translators of Isaiah 40:9:

• Kupsabiny: “Please, oh Zion,
  go to the top of (a) hill and speak good news!
  Speak out the news in great strength,
  oh, Jerusalem,
  Shout loudly without fear.
  Tell the cities of Judah
  that their God is coming!” (Source: Kupsabiny Back Translation)
• Newari: “O Zion, bringer of good news,
  go up to the high mountain and proclaim this good news!
  O Jerusalem, bringer of good news, cry out with a loud voice!
  Without being afraid,
  cry out with a loud voice!
  And tell the cities of Judah, "Your God is coming!"” (Source: Newari Back Translation)
• Hiligaynon: “You (plur.) who send the good-news to Zion, the city of Jerusalem, you (plur.) go-up to the high mountain, and you (plur.) tell loudly the good news. You (plur.) do- not -be-afraid to tell (it.) You (plur.) tell the towns of Juda that their God is already here.” (Source: Hiligaynon Back Translation)