en_tn_lite_do_not_use/php/01/22.md

But if I am to live in the flesh

The word "flesh" here is a metonym for the body, and "living in the flesh" is a metonym for being alive. Alternate translation: "But if I am to remain alive in my body" or "But if I continue to live" (See: rc://en/ta/man/translate/figs-metonymy)

that means fruitful labor for me

The words "fruitful labor" here refer to work that has good results. Alternate translation: "that means I will be able to do work that produces good results" (See: rc://en/ta/man/translate/figs-metaphor and rc://en/ta/man/translate/figs-explicit)

Yet which to choose?

"But which should I choose?"