en_tn_condensed/job/19/26.md

after my skin ... is destroyed

Possible meanings are that this refers to 1) his body being destroyed by disease or 2) his body decaying after he has died.

in my flesh I will see God

His flesh represents his body, and "in my flesh" represents being alive. Alternate translation: "while I live in my body, I will see God" (See: rc://en/ta/man/translate/figs-metonymy)