For we are the circumcision, which worship God in the spirit, and rejoice in Christ Jesus, and have no confidence in the flesh.
'We are the (real) circumcision (Romans 2:25-29).
Worship God in the Spirit. So C, Vulgate. But 'Aleph (') A B G read 'worship by the Spirit of God.' The Spirit is the influence whereby our religious service х latreia (G2999)] is rendered (John 4:23-24). Legal worship consisted in outward acts, restricted to certain times and places. Christian worship is spiritual, flowing from the inworking Holy Spirit; not restricted to isolated acts, but embracing the whole life (Romans 12:1). In the former, men trusted in something human, whether descent from the theocratic nation, or the righteousness of the law, or mortification of "the flesh" (Romans 1:9).
Rejoice (make our boast) in Christ Jesus - not in the law.
Have no confidence in the flesh - the outward and earthly, but in the Spirit.