Following are a number of back-translations as well as a sample translation for translators of Psalm 105:31:

• Chichewa Contempary Chichewa translation, 2002/2016:
  “He spoke, and there came more flies
  and lice in their whole land.” (Source: Mawu a Mulungu mu Chichewa Chalero Back Translation)
• Newari:
  “He gave the command
  and everywhere the land was full of flies and gnats.” (Source: Newari Back Translation)
• Hiligaynon:
  “At the command of God, their land was-filled with flies and mosquitoes.” (Source: Hiligaynon Back Translation)
• Laarim:
  “He spoke, and many more flies came,
  and the gnats that came all over the land of Egypt.” (Source: Laarim Back Translation)
• Nyakyusa-Ngonde (back-translation into Swahili):
  “Akaagiza, yakaja makundi ya mainzi,
  nchi yao yote ikajaa mbung’o.” (Source: Nyakyusa Back Translation)
• English:
  “Then Yahweh commanded that flies come, and swarms of them descended on the people of Egypt,
  and gnats also swarmed across the whole country.” (Source: Translation for Translators)