Following are a number of back-translations as well as a sample translation for translators of Psalm 89:3:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “You said, ‘I have made an agreement with my chosen one,
  I have vowed to David my servant that,” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “You said, "I have made a covenant with the one whom I have chosen,
  I have sworn an oath with David my servant,” (Source: Newari Back Translation)
• Hiligaynon:
  “You (sing.) said, ‘I made an agreement with my servant David, whom I have-chosen to-become king.
  And this is what I promised to him:” (Source: Hiligaynon Back Translation)
• Laarim:
  “You said that, ‘I made covenant with the person I chose,
  I promised my servant David that,” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Ulisema, ‘Nimeweka agano na mteule wangu,
  nimeapa kwa Daudi, mtumishi wangu,” (Source: Nyakyusa Back Translation)
• English:
  “Yahweh said, ‘I have made an agreement with David, whom I chose to serve me.
  I have made this solemn agreement with/ promise to him:” (Source: Translation for Translators)