Following are a number of back-translations as well as a sample translation for translators of Psalm 110:4:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “Jehovah has vowed
  and he will not change his thoughts:
  ‘You are a priest until forever
  according to the priesthood of Melchizedek.’” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “The Lord has made a great promise,
  and He will not change His mind,
  "You are a priest forever like Melchizedek."” (Source: Newari Back Translation)
• Hiligaynon:
  “The LORD has-sworn, and his mind/[lit. thinking] will- never -change, that you (sing.) (are) a priest without end, like the priestly-line of Melkizedek.” (Source: Hiligaynon Back Translation)
• Laarim:
  “The LORD promised,
  and he will not change his thinking again,
  when he said that, ‘You are priest forever,
  you stay like Melchizedek.’” (Source: Laarim Back Translation)
• Hausa Common Language Bible:
  “LORD does oath
  he will not change his decision
  ‘You priest is for ever
  according to order of Melchizedek.'” (Source: Andy Warren-Rothlin)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “BWANA aliapa, hatabadirisha ambayo amefikiri,
  ‘Wewe uko kuhani wa milele na milele,
  kama jinsi alivyokuwa Melkizedeki.’” (Source: Nyakyusa Back Translation)
• English:
  “Yahweh has made a solemn promise, and he will never change his mind;
  he has said to the king, ‘You will be a priest forever
  serving Yahweh like Melchizedek did.’” (Source: Translation for Translators)