On the second head it is to be noted, that this “day of salvation” exhorts and invites us by eight ways to holiness…
…The ordination of the Church invites us all to confession, and fasting, and frequenting of the church; whence he who does not do these things breaks the precepts of Mother Church: Prov. 1:8, “Forsake not the law of thy Mother.” (Thomas Aquinas, vol. 3, Ninety-Nine Homilies of S. Thomas Aquinas Upon the Epistles and Gospels for Forty-Nine Sundays of the Christian Year ( trans. John M. Ashley;London: Church Press Company, 1867), 4.)