ISB ~ Ephesians 2 v11

the uncircumcision:A Jewish epithet for Gentiles, who were excluded from the covenant and blessings God gave to Israel in ages past (2:12; Rom 9:4-5).

in the flesh:Circumcision of the foreskin was a procedure done by human hands as a sign of the Abrahamic covenant (Gen 17:9-14). This is in contrast to the circumcision of the heart, which Christ performs without human hands in the waters of Baptism (Rom 2:28-29; Col 2:11-12).