Following are a number of back-translations as well as a sample translation for translators of Psalm 137:9:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Who will catch your little ones
  and smash them on rocks.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “Blessed are those who catch your little children
  and throw them down on the rocks.” (Source: Newari Back Translation)
• Hiligaynon:
  “Blessed (are) they who will-take your (plur.) little children and will-dash/will-strike them against the rocks.” (Source: Hiligaynon Back Translation)
• Laarim:
  “the person who catches your young children.
  and smashes them on the rock.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Wamebarikiwa ambao wanawashika watoto wako,
  wanawaponda katika mwamba.” (Source: Nyakyusa Back Translation)
• English:
  “they will take your babies
  and completely smash them on the rocks.” (Source: Translation for Translators)