en_tn/neh/08/17.md

For since the days of Joshua

"From the days of Joshua"

son of Nun

"Nun" here is a man's name. (See: rc://en/ta/man/jit/translate-names)

their joy was very great

The abstract noun "joy" can be expressed as an adjective. Alternate translation: "the people were very joyful" (See: rc://en/ta/man/jit/figs-abstractnouns)