On its own, the physical sign of circumcision is no guarantee of finding favour in the sight of God. It was intended to be the outward sign of inward consecration and should be accompanied by repentance, faith and obedience. Paul stresses that circumcision confers no special privileges upon individuals; it is faith in God, rather than any outward sign, that ensures that believers stand in a right relationship to God.
Physical circumcision has no value without the obedience of the heart
The relationship between baptism and circumcision in the NT
Colossians 2:11-13Both circumcision and baptism may each be described as a “seal”. Baptism signifies entry into the new covenant in the same way that circumcision marked initiation into the old; Romans 4:11Abraham the father of all believers; 2 Corinthians 1:21-22;
Ephesians 1:13