Sacrosanctum Concilium says this: “The liturgy is the summit toward which the activity of the Church is directed; at the same time it is the font from which all her power flows.

10. Vatican Council II, Sacrosanctum concilium, 55. 11. Council of Trent, Session 22, chapter 3. 12. Hebrews 5:7; 7:25. Printed with permission from eCatholicHub.