Following are a number of back-translations as well as a sample translation for translators of Psalm 94:21:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “They gather together contending with the righteous
  and pass judgment that the innocent be killed.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “They gang up against righteous people
  and they sentence innocent people to death.” (Source: Newari Back Translation)
• Hiligaynon:
  “They have-become-one to go-against the righteous ones
  and they sentence to-death those (who) have-no sin.” (Source: Hiligaynon Back Translation)
• Laarim:
  “They stay together hating good people,
  and they judge innocent people to death.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Wanakuwa pamoja kupigana na wanyofu,
  wanakubaliana kuwahukumu wasio na hatia kuuawa.” (Source: Nyakyusa Back Translation)
• English:
  “They plan to get rid of righteous people, and they declare that innocent people/people who have not done what is wrong must be executed.” (Source: Translation for Translators)