THE PRECEPTS OF THE CHURCH (C.C.C. 2041-2043)
“[In brief] The precepts of the Church concern the moral and Christian life united with the liturgy and nourished by it.” (2058) These obligations created by the authority of the Church is meant to guarantee to the faithful the very necessary minimum in the spirit of prayer and moral effort, in the growth in love of God and neighbor:
Precept 1: "You shall attend Mass on Sundays and holy days of obligation and rest from servile labor" requires the faithful to honor all Sundays and Feast Days by participating in the Mass and by resting from those works and activities which could impede the liturgical celebrations of these days.
Precept 2: "You shall confess your sins at least once a year” ensures preparation for the Eucharist through the sacrament of confession, which continues Baptism's work of conversion and forgiveness to make us worthy to receive.
Precept 3: "You shall receive the sacrament of the Eucharist at least during the Easter season" guarantees as a minimum the reception of the Lord's Body and Blood in connection with the Paschal feasts, the origin and center of the Christian liturgy