Colossians 2:11-12 refers to [our true] spiritual circumcision: “In Him you were also circumcised, in the putting off of the sinful nature, not with a circumcision done by the hands of men but with the circumcision done by Christ, having been buried with Him in baptism and raised with Him through your faith in the power of God, who raised Him from the dead.” This circumcision does not involve the cutting of the body; it is a cutting away of our old nature. It is a spiritual act and refers to nothing less than salvation, effected by the Holy Spirit. Baptism, mentioned in verse 12, does not replace circumcision; it follows circumcision – and it is clearly a spiritual circumcision that is meant. Baptism, therefore, is a sign of inward, spiritual “circumcision.” This passage also specifies that the new life, represented by baptism, comes “through your faith.” This implies that the one being baptized has the ability to exercise faith. Since infants are not capable of exercising faith, they should not be candidates for baptism.