“Circumcision in the Old Testament was a prefiguring of Baptism in the New Testament.  Both symbolize a renunciation of the flesh with its sins.  The first was done by wounding of the body; the second, by cleansing the soul.  The first incorporated the child into the body of Israel; the second incorporates the child into the body of the new Israel or the Church.”  Archbishop Fulton Sheen (Life of Christ)