Chapter 16 — Part II: The Sacraments — Baptism
Section 20. Upon this subject pastors can teach in the first place that water, which is always at hand and within the reach of all, was the fittest matter of a Sacrament which is necessary to all for salvation. In the next place water is best adapted to signify the effect of Baptism. It washes away uncleanness, and is, therefore, strikingly illustrative of the virtue and efficacy of Baptism, which washes away the stains of sin. We may also add that, like water which cools the body, Baptism in a great measure extinguishes the fire of concupiscence.