What does the Bible say about circumcision in the New Testament?

In the New Testament, specifically Romans 2:29, circumcision is described as an inward work of the Holy Spirit rather than a physical act. It reflects a spiritual transformation where one becomes a true worshiper of God, whose praise comes not from men but from God. This inward circumcision leads the believer to abandon reliance on the flesh and recognize the sufficiency of Christ alone for salvation and service to God. It signifies the removal of sin and the uncleanliness of the heart as believers are made new creatures in Christ.