Sunday

«To sanctify holy days»: to dedicate Sunday and other holy days of obligation to God through divine worship and proper rest. Its origin reaches far back: Sacred Scripture recounts that God, upon completing creation, «blessed the seventh day and made it holy». Man, who cooperates with God through daily labor, must also pause just as He did: we are not mere production machines (commandments).

Because Jesus Christ rose from the dead on a Sunday. The Jewish Sabbath commemorated the completion of the first creation; Sunday celebrates the dawn of the new creation inaugurated by the Resurrection (Redemption). For this reason it is called the «Lord's Day»—dies Domini, from which the romance word domingo derives—and Christians have celebrated it thus from the very beginning, since the time of the Apostles.

Personal prayer is indispensable, but it cannot substitute for communal, public worship. Man is not a disembodied spirit: we need to express with our body, through outward signs, and in communion with others what we live within our hearts; no one would claim to love his family while never gathering to celebrate anything with them. Furthermore, faith is not a purely private affair: it is also professed publicly and in community, and having the freedom to do so is a fundamental right (laicism).

Chiefly by participating in Holy Mass, which is the «source and summit» of the entire Christian life. Either Sunday Mass or the vigil Mass on Saturday evening, celebrated in any church of Catholic rite, fulfills the precept. Sunday is, quite literally, the day of giving thanks: that is the very meaning of the word «Eucharist».

Not out of a desire for control, but as a mother who ensures that her children are never deprived of essential nourishment. Of the earliest Christians it was written that they «persevered in the breaking of bread»; ancient martyrs boldly answered their Roman judges: «Without Sunday, we cannot live». The precept safeguards that spiritual vitality. Those with serious reasons are excused: sickness, caring for infants or the infirm, or genuine physical impossibility.

In addition to Sundays, there are major solemnities on which the Church calls the faithful to assist at Holy Mass. The principal ones are:

• Christmas and the Epiphany.
• The Ascension and Corpus Christi.
• Mary, Mother of God (January 1), the Immaculate Conception, and the Assumption.
• Saint Joseph, Saints Peter and Paul, and All Saints.

In each country, the episcopal conference may transfer or dispense certain feasts according to pastoral necessity (liturgical seasons).

It is not an escape from reality, but its blessing: pausing «to look upon reality and say: how good and beautiful life is!». It is the day to cultivate what daily bustle often sidelines: family, friends, the interior life, culture, and nature. God rested on the seventh day and rejoiced in His handiwork; Christian rest partakes of that joy, not of boredom (entertainment).

The guiding rule is straightforward: avoid work and activities that impede giving proper worship to God, hinder the joy proper to the Lord's day, or prevent authentic rest. This is not a legalistic, rigid checklist: essential services (healthcare, public transport, hospitality...) and urgent duties of justice or charity naturally take precedence. But whoever can arrange their schedule should do so, and also refrain from unnecessarily imposing upon others—such as employees—labor that deprives them of their Sunday (justice).

Precisely for that reason it is needed now more than ever. In a culture of constant digital connection, where work pursues us even onto the couch, Sunday is a courageous act of freedom: declaring that we do not live merely to produce and consume. Interestingly, the weekly day of rest that the entire modern world takes for granted is the direct fruit of this divine commandment. Defending Sunday—beginning with one's own—is a profound service Christians render to all of society (work, family).