## It is for freedom ##

The translation needs to emphasize "freedom" in contrast with the slavery talked about in the previous verses.

## for  ##

"to provide us with"

## stand firm  ##

"stay where you are," even though people are trying to force you to move

## if you become circumcised ##

"if you return to the Jewish religion." Paul is using circumcision as metonymy for Judaism. (See: [[rc://en/ta/man/translate/figs-metonymy]])