Following are a number of back-translations as well as a sample translation for translators of Psalm 78:40:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Many times they were rebelling against Him in the wilderness
  and grieved him in a land without a thing!” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “How many times have they spoken against Him in the desert,
  how many times have they given Him trouble!” (Source: Newari Back Translation)
• Hiligaynon:
  “Several/many times they rebelled against God and grieved him there in the desert/desolate-place.” (Source: Hiligaynon Back Translation)
• Laarim:
  “They rejected his word completely,
  and made him to be grieved in a desert.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Mara nyingi walimwasi Mungu,
  na kumletea huzuni,
  wakati wako jangwani.” (Source: Nyakyusa Back Translation)
• English:
  “Many times our ancestors rebelled against God in the desert
  and caused him to become very sad.” (Source: Translation for Translators)