Following are a number of back-translations as well as a sample translation for translators of Psalm 78:57:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “They were failures and unfaithful like their parents,
  they were twisted like an unfaithful bow.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “Like their ancestors
  they also betrayed God
  and became people without faith.
  And [they] became unreliable like a ruined bow.” (Source: Newari Back Translation)
• Hiligaynon:
  “They went-away and betrayed God like their ancestors/[lit. old-ones].
  They are- not -able-to-trust like a broken bow.” (Source: Hiligaynon Back Translation)
• Laarim:
  “They were like their ancestors who did not obey the word of God,
  and they no longer obey him,
  and they stayed to God like broken bows.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Waliacha kumcha kama vile babu zao,
  hawakutumainiwa, kama vile upinde ambao umepinda.” (Source: Nyakyusa Back Translation)
• English:
  “Instead, like their ancestors did, they rebelled against God and were not loyal to/did not faithfully obey him;
  they were as unreliable as a crooked arrow that does not go straight.” (Source: Translation for Translators)