Chapter 26 — Part III: The Decalogue — The Third Commandment
Section 45. Works Commanded Or Recommended — The pastor should also not omit carefully to teach what works and actions Christians should perform on festival days. These are: to go to church, and there, with heartfelt piety and devotion, to assist at the celebration of the Holy Sacrifice of the Mass; and to approach frequently the Sacraments of the Church, instituted for our salvation in order to obtain a remedy for the wounds of the soul.