en_tn/luk/09/25.md

What good is it ... forfeit himself?

The implied answer to this question is that it is not good. AT: "It will not benefit someone at all to gain the whole world, and yet lose himself." (See: rc://en/ta/man/translate/figs-rquestion)

to gain the whole world

"to get everything in the world"

lose or forfeit himself

"ruin himself or give up his life"