11. περιτομῆς. The gen. of description—not practically different from περιτομήν.
σφραγῖδα. App. a common Jewish term for circumcision; cf. S. H., Wetst. ad loc[118], “signum foederis, sigillum Abrahami.” For the Jew circumcision marked the inclusion of the individual in the Covenant: here S. Paul treats it as a mark of the righteousness reckoned by GOD to Abraham as a result of his faith (a different interpretation), consequently not as excluding others, but as an outward sign and acknowledgment of Abraham’s actual position; cf. Eph 1:13.
[118] ad loc. ad locum
εἰς τὸ εἶναι αὐ. π. The essential characteristic of A. was righteousness imputed to faith. Circumcision confirmed this, and consequently itself points to the lineage of A. being a lineage dependent on sharing his faith, not on sharing his circumcision.
δι' ἀκροβυστίας = while in a state of uncircumcision. = ἐν, Rom 4:10; cf. Rom 2:27 n.
τὴν δικαιοσύνην = the same righteousness that was imputed to Abraham.