Following are a number of back-translations as well as a sample translation for translators of Psalm 129:8:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Let the nearby passers not say that,
  ‘The blessing of Jehovah is on you;
  we are blessing you in the name of Jehovah.’” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “None of those who pass by there will [ever] say,
  "May the Lord bless you.
  We bless you in the name of the Lord."” (Source: Newari Back Translation)
• Hiligaynon:
  “May-it-be that no one passes-by who will-say to them,
  ‘May-it-be that the LORD bless you (plur.)!
  We (excl.) bless you (plur.) in the name of the LORD.’” (Source: Hiligaynon Back Translation)
• Laarim:
  “Not will people who cross by our enemies say that,
  ‘You (plur.) let the LORD to bless you.
  We bless you (plur.) in the names of the LORD.’” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Wasafiri wasiseme kwa wavunaji wabaya wale kuwa,
  ‘BWANA awabariki,
  tunawabariki katika jina la BWANA!’” (Source: Nyakyusa Back Translation)
• English:
  “People who pass by and see men harvesting grain usually greet them by saying to them, ‘We wish/hope that Yahweh will bless you!’ But this will not happen to those who hate Israel. We, acting as Yahweh’s representatives, bless you Israelis.” (Source: Translation for Translators)