en_tn/num/03/21.md

come from Gershon

Here the author speaks of "descending" as if it were "coming." AT: "descend from Gershon" (See: rc://en/ta/man/translate/figs-metaphor)

Libnites ... Shimeites ... Gershonites

"Libnites" and "Shimeites" are the name of clans, named after the head of their family. The "Gershonites" is the name of people who descended from Gershon. (See: rc://en/ta/man/translate/translate-names)

All the males from a month old and older were counted

This can be stated in active form. AT: "Moses counted all the males from a month old and older" (See: rc://en/ta/man/translate/figs-activepassive)

7,500

"seventy-five hundred" or "seven thousand five hundred" (See: rc://en/ta/man/translate/translate-numbers)