1. Circumcision was not a part of the Mosaic covenant, but of the Abrahamic covenant. It had a much larger application than the former. It was closely connected with justification by faith and the promise of the coming Savior. 2. The circumcision of Abraham, according to Paul in Romans 4:11, was a seal of the righteousness of faith that he had before he was circumcised. God told Abraham to give this seal to his children/infants so that God could make them partakers of the privileges of His covenant in their early infancy. 3. Is there any connection between circumcision and baptism? The apostle Paul says that there is, in Colossians 2:11: “ In whom (Christ) you were also circumcised with a circumcision not made with hands, in the putting off of the body of the flesh, in the circumcision of Christ; having been buried with him in baptism, wherein you were also raised with him through faith.” The literal, plain, grammatically correct interpretation of that phrase in that verse is that baptism IS the circumcision of Christ. To read into this verse that what God really meant when He used the word “baptism” was “the baptism of the Holy Spirit” is a complete disregard for all rules of scriptural interpretation. If it is ok to re-interpret this verse of scripture and not interpret the word “baptism” to mean the Christian rite/ordinance of baptism, then no one can read the Word of God with any confidence, because the rules of logic have been completely abolished. You are essentially saying that “A” does not mean “A”! 4. Baptists believe that circumcision was simply an external sign of an external union with a national congregation, to secure the separation of the Jews from all other nations, and their unity as a people. Baptism, on the other hand, they say, is an external sign of an inward spiritual grace already wrought in the heart. However, circumcision was not part of the Mosaic covenant, but of the Abrahamic covenant, and was therefore not limited to Israel. The various nations which descended from Abraham use it, not just Israel. Abraham was the first man circumcised. Therefore his circumcision sets the precedent and the underlying meaning of this act. His circumcision was an external sign of an inward spiritual grace: “to be a God unto thee and to thy seed after thee”. According to Paul the profit of the circumcision was that “they were intrusted with the oracles of God.” Romans 3:1-2 So it is clear that circumcision was an external sign of an inward spiritual grace!