Minimally, being a Catholic means following all precepts of the church and following, believing, everything the Catholic Church teaches as it has been faithfully handed down in an unbroken line from the Apostles.
What are the Precepts of the church?
These are as listed in the Catechism of the Catholic Church:
2041
The precepts of the Church are set in the context of a moral life bound to and nourished by liturgical life. The obligatory character of these positive laws decreed by the pastoral authorities 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:
2042
The first precept (“You shall attend Mass on Sundays and on holy days of obligation and rest from servile labor”) requires the faithful to sanctify the day commemorating the Resurrection of the Lord as well as the principle liturgical feasts honoring the mysteries of the Lord, the Blessed Virgin Mary, and the saints; in the first place, by participating in the Eucharistic celebration, in which the Christian community is gathered, and by resting from those works and activities which could impede such a sanctification of these days.82
Code:
The second precept ("You shall confess your sins at least once a year.") ensures preparation for the Eucharist by the reception of the sacrament of reconciliation, which continues Baptism's work of conversion and forgiveness.83
The third precept ("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.84
2043
The fourth precept (“You shall observe the days of fasting and abstinence established by the Church”) ensures the times of ascesis and penance which prepare us for the liturgical feasts and help us acquire mastery over our instincts and freedom of heart.85
Code:
The fifth precept ("You shall help to provide for the needs of the Church") means that the faithful are obliged to assist with the material needs of the Church, each according to his own ability.86
The faithful also have the duty of providing for the material needs of the Church, each according to his abilities.87
The 10 Commandments must also be followed, especially those of a grave matter in order to remain in a state of Grace. The 10 commandments are:
- I am the LORD your God:
you shall not have
strange Gods before me.
- You shall not take
the name of the LORD your God in vain.
- Remember to keep holy the LORD’S Day.
- Honor your father and your mother.
- You shall not kill.
- You shall not commit adultery.
- You shall not steal.
- You shall not bear false witness
against your neighbor.
- You shall not covet
your neighbor’s wife.
- You shall not covet
your neighbor’s goods.