Following are a number of back-translations as well as a sample translation for translators of Psalm 89:51:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “the mocking words that your enemies have been insulting, You Jehovah,
  and the words which have been insulting all the movements of your anointed one.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “Your enemies, O LORD, have ridiculed me.
  Every step of the way they ridicule the king that You anointed.” (Source: Newari Back Translation)
• Hiligaynon:
  “They who (are) your (sing.) enemies, LORD, are the-(ones-who) mock your (sing.) chosen king everywhere he goes.” (Source: Hiligaynon Back Translation)
• Laarim:
  “LORD, your enemies insulted the king which you choose,
  they insulted him in all ways which he went.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Ee BWANA, tazama jinsi wananitukana mimi mteule wako,
  wananidhihaki kote ambako nakwenda.” (Source: Nyakyusa Back Translation)
• English:
  “Yahweh, your enemies insult your chosen king!
  They insult/ridicule him wherever he goes.” (Source: Translation for Translators)