en_tn/ecc/08/17.md

the work that is done under the sun

Possible meanings are 1) "the work that God does under the sun" or 2) "the work that God allows people to do under the sun." (See: rc://en/ta/man/translate/figs-activepassive)

under the sun

This refers to things that are done on earth. See how you translated this in Ecclesiastes 1:3. AT: "on the earth" (See: rc://en/ta/man/translate/figs-idiom)