Following are a number of back-translations as well as a sample translation for translators of Psalm 40:16:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “But those who seek You
  let them rejoice and be glad in You;
  those who love your salvation
  all the time let them say, ‘Jehovah be exalted!’” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “But may those who keep searching for You rejoice with You,
  And may those who love Your salvation always speak like this,
  ‘How great is the LORD!’” (Source: Newari Back Translation)
• Hiligaynon:
  “But may-it-be that all who take-refuge-in/go-for-help-from you (sing.) will- surely -rejoice/be-happy because of you (sing.).
  May-it-be that those who desire salvation from you (sing.) always say, ‘The LORD be-praised.’” (Source: Hiligaynon Back Translation)
• Eastern Bru:
  “Request you allow all people who believe in you to rejoice, and let all people who are thankful for salvation agree to say this: "God’s rule is great!"” (Source: Bru Back Translation)
• Laarim:
  “But you would allow all people who are search for you,
  to be happy and rejoice in you,
  you would let people who love your salvation to always say that,
  ‘You (plur.) let the LORD to be great!’” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Lakini wote ambao wanakutafuta wewe,
  washangilie na kufurahi.
  Ambao wanaupenda wokovu wako,
  daima waseme, ‘BWANA awe anasifiwa!’” (Source: Nyakyusa Back Translation)
• English:
  “But I hope that all those who go to worship you will be very joyful.
  I want those who love you because you saved them to shout repeatedly,
  ‘Yahweh is great!’” (Source: Translation for Translators)