Catholicism and the Ten Commandments
According to Exodus in the Old Testament, God issued his own set of laws (the Ten Commandments) to Moses on Mount Sinai. The Ten Commandments are considered divine law because God himself revealed them. And because they were spelled out specifically with no room for ambiguity, they’re also positive law. Hence they’re also known as divine positive law.
The Church doesn’t see the Ten Commandments as arbitrary rules and regulations from the man upstairs but as commandments for protection. Obey them and eternal happiness is yours. Disobey them and suffer the consequences.
The ten commandments, in order, are:
I am the Lord thy God, thou shalt not have any strange gods before Me.
This commandment forbids idolatry, the worship of false gods and goddesses, and it excludes polytheism, the belief in many gods, insisting instead on monotheism, the belief in one God. This commandment forbids making golden calves, building temples to Isis, and worshipping statues of Caesar, for example.
Thou shalt not take the name of the Lord thy God in vain.
The faithful are required to honor the name of God. It makes sense that if you’re to love God with all your heart, soul, mind, and strength, then you’re naturally to respect the name of God with equal passion and vigor.
Remember to keep holy the Sabbath day.
The Jewish celebration of Sabbath (Shabbat) begins at sundown on Friday evening and lasts until sundown on Saturday. Catholic, Protestant, and Orthodox Christians go to church on Sunday, treating it as the Lord’s Day instead of Saturday to honor the day Christ rose from the dead.
Honor thy father and mother.
This commandment obliges the faithful to show respect for their parents — as children and adults. Children must obey their parents, and adults must respect and see to the care of their parents, when they become old and infirm.
Thou shalt not kill.
The better translation from the Hebrew would be Thou shalt not murder — a subtle distinction but an important one to the Church. Killing an innocent person is considered murder. Killing an unjust aggressor to preserve your own life is still killing, but it isn’t considered murder or immoral.
Thou shalt not commit adultery.
The sixth and ninth commandments honor human sexuality. This commandment forbids the actual, physical act of having immoral sexual activity, specifically adultery, which is sex with someone else’s spouse or a spouse cheating on their partner. This commandment also includes fornication, which is sex between unmarried people, prostitution, pornography, homosexual activity, masturbation, group sex, rape, incest, pedophilia, bestiality, and necrophilia.
Thou shalt not steal.
The seventh and tenth commandments focus on respecting and honoring the possessions of others. This commandment forbids the act of taking someone else’s property. The Catholic Church believes that this commandment also denounces cheating people of their money or property, depriving workers of their just wage, or not giving employers a full day’s work for a full day’s pay. Embezzlement, fraud, tax evasion, and vandalism are all considered extensions of violations of the Seventh Commandment.
Thou shalt not bear false witness against thy neighbor.
The Eighth Commandment condemns lying. Because God is regarded as the author of all truth, the Church believes that humans are obligated to honor the truth. The most obvious way to fulfill this commandment is not to lie — intentionally deceive another by speaking a falsehood. So a good Catholic is who you want to buy a used car from.
Thou shalt not covet thy neighbor’s wife.
The Ninth Commandment forbids the intentional desire and longing for immoral sexuality. To sin in the heart, Jesus says, is to lust after a woman or a man in your heart with the desire and will to have immoral sex with them. Just as human life is a gift from God and needs to be respected, defended, and protected, so, too, is human sexuality. Catholicism regards human sexuality as a divine gift, so it’s considered sacred in the proper context — marriage.
Thou shalt not covet thy neighbor’s goods.
The Tenth Commandment forbids the wanting to or taking someone else’s property. Along with the Seventh Commandment, this commandment condemns theft and the feelings of envy, greed, and jealousy in reaction to what other people have.

Catholicism Glossary
Advent
The religious season before Christmas when Christians prepare to celebrate the birth of Christ.

Catholicism Glossary
altar
A raised table-like structure from which a priest celebrates Mass.

Catholicism Glossary
annulment
A canon law decree that declares that a marriage was never a valid sacrament in the first place, usually because one or both of the partners did not enter into it with good faith and intentions.

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apostles
The 12 men who accompanied and supported Jesus and were trained by him to spread Christianity.

Catholicism Glossary
archdiocese
A large diocese run by an archbishop.

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Ash Wednesday
The first day of Lent when Catholics are anointed with ashes as a reminder of their mortality.

Catholicism Glossary
Baptism
The essential sacrament that washes away original sin and welcomes the baptized person into the Church.

Catholicism Glossary
Holy Trinity
The Catholic belief that God, the one Supreme Being, is made up of three persons: God the Father, God the Son, and God the Holy Spirit.

Catholicism Glossary
bishop
A man ordained first to the priesthood, then elevated to the next level by the pope. A bishop oversees a diocese; an archbishop oversees an archdiocese.

Catholicism Glossary
Byzantine Catholicism; Eastern Catholicism
A branch of Catholicism that recognizes the authority of the pope and celebrates the sacraments, but whose rituals differ from those of Western or Roman Catholic sects.

Catholicism Glossary
canon law
The supreme law of the Catholic Church that spells out the rules and regulations that guide the Church.

Catholicism Glossary
cardinal
An ordained man elevated to the step just below the pope. Cardinals help the pope administer to the faithful and a new pope is elected from among them when a pope dies.

Catholicism Glossary
catechism
A book that contains the doctrines of Catholicism.

Catholicism Glossary
celibacy
A formal and solemn oath to never enter the married state. Priests take a vow of celibacy.

Catholicism Glossary
chalice
The gold or silver cup that holds the wine that will become Christ’s body and blood during the Mass.

Catholicism Glossary
cleric
A member of the clergy.

Catholicism Glossary
confession; penance
A sacrament during which a Catholic confesses all known mortal sins to a priest.

Catholicism Glossary
Consecration
The part during the Mass when the priest changes the bread and wine into the body and blood of Jesus.

Catholicism Glossary
creed
A Christian oath, stating what Catholics believe as revealed to them by God through Sacred Scripture and Sacred Tradition. Key Catholic creed are the Apostles’ Creed and the Nicene Creed.

Catholicism Glossary
deacon
An ordained man who normally has no intention or desire of becoming a priest. A deacon may be single or married.

Catholicism Glossary
diocese
A collection of parishes overseen by a bishop.

Catholicism Glossary
feast day
The day in the Catholic calendar when a specific saint’s holy life and deeds are remembered.

Catholicism Glossary
genuflection
The act of touching the right knee to the floor while bending the left knee as a gesture of respect and obedience to God.

Catholicism Glossary
godparent
Sponsor to a child or adult being baptized.

Catholicism Glossary
Good Friday
The Friday before Easter Sunday; the day Jesus died on the cross.

Catholicism Glossary
grace
A totally free, unmerited gift from God. Grace is a sharing in the divine; the inspiration to do God’s will.

Catholicism Glossary

Catholicism Glossary
Heaven
A place of eternal joy and the ecstasy of dwelling with God.

Catholicism Glossary
Hell
A place of eternal torment and damnation.

Catholicism Glossary
Holy Communion; Holy Eucharist
The essential sacrament of Catholicism in which a host consecrated by a priest becomes literally the body and blood of Jesus and is received by the Catholic faithful.

Catholicism Glossary
holy day of obligation
A day in the Catholic calendar when all Catholics must attend Mass.

Catholicism Glossary
homily
The sermon given after the Gospel is read at Mass. Different than a sermon in that it’s a explanation and reflection on the Word of God, read only by clergy.

Catholicism Glossary
host
A wafer of bread used in a Eucharistic service. It becomes the Host (capitalized) when consecrated.

Catholicism Glossary
infallible
Incapable of error. The pope is believed to be infallible when he teaches a doctrine on faith or morals to the universal Church.

Catholicism Glossary
laity; lay people
Non-ordained, everyday Catholics. Members of a religious organization who are not clergy.

Catholicism Glossary
lector
A layperson trained for the task of reading at Mass.

Catholicism Glossary
Lent
The 40 days before Easter, when Catholics prepare for the death and resurrection of Jesus through fasting, abstinence, and prayer, often giving up a specific treat for the duration of the season.

Catholicism Glossary
Mass
The formal, official worship service of Catholicism. Catholics are required to attend Mass every Sunday and on holy days of obligation.

Catholicism Glossary
mortal sin
A sin that kills grace; committing a mortal sin is tantamount to choosing Hell over Heaven.

Catholicism Glossary
natural family planning NFP
The only sanctioned birth control method for Catholics, it relies on charting a woman’s fertile cycle and abstaining from sex during fertile periods to prevent pregnancy.

Catholicism Glossary
original sin
Sin passed down to every human from Adam and Eve; the Sacrament of Baptism washes it away.

Catholicism Glossary
parish
A collection of neighborhoods in one region of a county within a given state under the spiritual care of a priest.

Catholicism Glossary
pope
The supreme head of the Catholic Church.

Catholicism Glossary
priest
An ordained man responsible for administering the sacraments and tending to the spiritual health of his parishioners.

Catholicism Glossary
purgatory
A spiritual state of the soul in which it is purified before entering heaven.

Catholicism Glossary
sacrament
A rite established by Jesus Christ to bring grace to those participating in or receiving it. The seven sacraments of Catholicism are Baptism, Penance, Confirmation, Holy Eucharist, Matrimony, Holy Orders, and Anointing of the Sick.

Catholicism Glossary
seminarian
A student training for the priesthood.

Catholicism Glossary
seminary
The equivalent of Protestant divinity school where men are trained for the priesthood.

Catholicism Glossary
sign of the cross
A gesture of respect in which a Catholic uses the right hand to touch the forehead, then the middle of the breast, then the left shoulder, and finally the right shoulder.

Catholicism Glossary
Ten Commandments
God’s laws as given to Moses. Following the Commandments is the path to a holy life; breaking them is the basis of sin.

Catholicism Glossary
transubstantiation
The act of changing the substances of bread and wine into the Body and Blood of Christ.

Catholicism Glossary
Vatican
The physical seat of the Catholic Church; the pope lives and rules from the Vatican.

Catholicism Glossary
venial sin
A transgression that inflicts a slight wound to the soul and which may be forgiven by making a confession and a sincere act of contrition.