en_tn/job/28/21.md

Wisdom is hidden from the eyes of all living things

This means that living things are unable to see wisdom. It can be expressed in active form. AT: "No living thing can see wisdom" (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-activepassive)

is kept hidden from the birds of the heavens

This means that the birds are unable to see wisdom. This can be expressed in active form. AT: "even the birds that fly in the skies cannot see wisdom" (See: rc://en/ta/man/translate/figs-activepassive)