Chapter 16 — Part II: The Sacraments — Baptism
Section 37. Baptism Instituted At Christ's Baptism — With regard to the former, it is clear that this Sacrament was instituted by our Lord when, having been baptised by John, He gave to water the power of sanctifying. St. Gregory Nazianzen and St. Augustine · testify that to water was then. imparted the power of regenerating to spiritual life. In another place St. Augustine says: From the moment that Christ is immersed in water, water washes away all sins. And again: The Lord is baptised, not because He had need to be cleansed, but in order that, by the contact of His pure flesh, He might purify the waters and impart to them the power of cleansing.