Romans 2:25

25 For circumcision
Circumcision refers to male circumcision as prescribed in the OT, which was given as a covenant to Abraham in Gen 17:10–14. Its importance for Judaism can hardly be overstated: According to J. D. G. Dunn (Romans [WBC], 1:120) it was the “single clearest distinguishing feature of the covenant people.” J. Marcus has suggested that the terms used for circumcision (περιτομή, peritomē) and uncircumcision (ἀκροβυστία, akrobustia) were probably derogatory slogans used by Jews and Gentiles to describe their opponents (“The Circumcision and the Uncircumcision in Rome,” NTS 35 [1989]: 77-80).
has its value if you practice the law, but
This contrast is clearer and stronger in Greek than can be easily expressed in English.
if you break the law,
Grk “if you should be a transgressor of the law.”
your circumcision has become uncircumcision.
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