Following are a number of back-translations as well as a sample translation for translators of Psalm 40:5:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Many, Jehovah my God,
  are the wonders which You have done.
  The things that you prepared for us
  there is no one who can be able to count to you.
  If I can speak and explain,
  they will be too much to explain.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “O LORD, my God!!
  You have done many amazing works for us.
  You have planned countless amazing plans for us.
  There is no one like You.
  If the works You have done were recounted,
  [the telling] would never be finished.” (Source: Newari Back Translation)
• Hiligaynon:
  “LORD my God, no-one can-be-like you (sing.).
  Many amazing things you (sing.) have-done,
  and many (are) your (sing.) plans for us (excl.).
  I can- not -describe all of these for (they are) very many.” (Source: Hiligaynon Back Translation)
• Eastern Bru:
  “Oh God, my God! You have already done many wonderful things. As for the good things you have done for all people to see and know, surely I am not able to recount. And surely no one is able to adequately recount those works.” (Source: Bru Back Translation)
• Laarim:
  “LORD my God, there are many matters
  which amazed us which you did.
  Many matters that you planned for us,
  not any person who can stop you.
  When I want to speak about them,
  they are too many for me to tell.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Ee Bwana Mungu wangu,
  umetufanyia mengi ya kushangaza.
  Ambayo uliyapanga kwa sababu yetu,
  hakuna hata mmoja ambaye anaweza kuyahesabu.
  Iwapo ningesema na kuyaeleza,
  mengi sana hayahesabiki.” (Source: Nyakyusa Back Translation)
• English:
  “O Yahweh, my God, you have done many wonderful things!
  No one can list all the wonderful things that you have planned for us.
  If I tried to tell others about all those wonderful things,
  I would not be able to, because there would be too many for me to mention.” (Source: Translation for Translators)