The rite of circumcision is the sign of God's covenant with Abraham and his descendants (Genesis 17: 1-14). The act represented the keeping of the covenant and separation from God. The Israelites subsequently referred to the Gentiles as "uncircumcised" (Jdg 14:3). In the New Testament. However, we find God's reproach that Israel was "uncircumcised in heart and ears" (Acts 7:51). Thus, in the Christian dispensation, circumcision is not to be understood literally but with a spiritual meaning. Paul explains the importance of the inner circumcision of the heart (Romans 2:28-29). The "circumcision of Christ" means that we no longer have to serve the flesh and its desires like spiritually dead people but are made alive with Christ and can serve God through the Spirit (Col. 2:11-13; Phil. 3:3). It is attributed to us at conversion.
