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Thorns & Light

Understand Catholicism

The Ten Commandments

The Decalogue in plain language: where it comes from, what each commandment asks, and what it has never asked of you.

The Ten Commandments (the Decalogue, meaning 'ten words') are given to Israel at Sinai in the book of Exodus and repeated in Deuteronomy. Catholics receive them as part of God's revelation, summarised by Jesus in two commandments: love God, and love your neighbour as yourself.

They are often taught as a list of prohibitions. Read closely, they read more like the shape of a life where people are safe with each other: worship that is not idolatry, speech that is not used as a weapon, families that are honoured, bodies and property and reputations that are not taken.

If commandments have been quoted at you to keep you quiet, compliant, or in danger, that was a misuse of them. This page names those misuses directly.

Where they come from

The Decalogue appears twice in the Old Testament: in Exodus, at Mount Sinai, after Israel is brought out of slavery in Egypt, and again in Deuteronomy as Moses recalls the covenant. The order matters: liberation comes first, and the commandments follow as the terms of a relationship, not as a test to earn rescue.

Jesus does not set the commandments aside. In the Gospels he is asked which commandment is greatest and answers with love of God and love of neighbour, and he tells a man who asks about eternal life to keep the commandments. Catholic tradition reads the Decalogue in that light: as belonging to love, not competing with it.

The ten, in the Catholic enumeration

1. I am the Lord your God: you shall not have strange gods before me. Nothing created is owed the trust that belongs to God: not money, not status, not a person, not an institution.

2. You shall not take the name of the Lord your God in vain. God's name is not a tool. This includes swearing oaths falsely and invoking God to justify what harms people.

3. Remember to keep holy the Lord's day. Rest and worship are commanded, not earned. A day is set aside for God and for genuine rest, which is why Catholics gather for Mass on Sunday.

4. Honour your father and your mother. Family bonds are real and deserve gratitude and care. Honour is not the same as obedience to harm; see the section below.

5. You shall not kill. Human life is not disposable. The Church draws from this a wide concern: murder, violence, neglect of the vulnerable, and anything that treats a person as expendable.

6. You shall not commit adultery. Faithfulness in marriage, and more broadly, sexual integrity: never using another person's body, trust, or vulnerability.

7. You shall not steal. Property is not absolute; the poor have a genuine claim on what others hold in surplus. Wage theft and exploitation belong here too.

8. You shall not bear false witness against your neighbour. Truthfulness, and the protection of another person's reputation from lies and rumour.

9. You shall not covet your neighbour's wife. The interior life matters, not only the act: desire that would consume another person is already disordered.

10. You shall not covet your neighbour's goods. Envy corrodes. Enough is a real category.

Why the numbering differs between Christians

Catholics, Lutherans, Orthodox, and Reformed Christians divide the same biblical text slightly differently, mainly over whether the prohibition of images is counted separately from the first commandment, and whether coveting is one commandment or two. The content is the same text; the division is a catechetical convention.

This is worth knowing because the difference is sometimes presented as Catholics 'removing' a commandment. Nothing is removed. Catholic catechisms include the prohibition of idolatry within the first commandment and treat images as a question about worship, not about art.

What the commandments do not ask of you

The fourth commandment does not require you to submit to a parent who is abusing you, to stay in contact with someone who is dangerous, or to let a family member harm your children. Honouring a parent can look like praying for them from a distance while keeping yourself and your dependants safe.

The eighth commandment does not require you to keep abuse secret. Telling the truth about what happened to you: to police, to a safeguarding office, to a therapist, to someone who can help: is not gossip, disloyalty, or slander. Concealment protects the person doing harm, not the truth.

The sixth and ninth commandments describe what faithfulness asks of a person who is free. They are not a verdict on someone whose body was used without consent. Abuse is what was done to you, not something you did.

The fifth commandment's regard for life includes your life. Protecting yourself, leaving, calling for help, and accepting medical or psychiatric care are consistent with it, not exceptions to it.

How Catholics actually use them

They are used as a mirror rather than a scoreboard: commonly in preparing for Confession, where the list becomes a set of questions about how you have treated God and other people, and what you want to change.

The Church distinguishes between grave and lesser sin, and takes seriously how much a person freely knew and chose. Fear, coercion, addiction, exhaustion, and trauma all bear on culpability. If someone has used the commandments to convince you that you are beyond mercy, they have taught you something the Church does not teach.

The commandments are also read socially, not only privately: unjust wages, neglected migrants, and violence against the vulnerable are treated as breaches of them, not as separate political concerns.

Common misconceptions

Catholics dropped the commandment about graven images.

It is included in the first commandment, which forbids idolatry: giving to anything created the worship owed to God alone. Statues and icons are honoured as reminders, in the same way a photograph of someone you love is treated with care; the honour passes to the person, not the plaster.

The commandments are how you earn heaven.

Catholic teaching is that salvation is God's gift, received in grace and never bought by performance. The commandments describe the shape of a life lived in that gift. Keeping them is a response to love, not a payment for it.

'Honour your father and mother' means obey them no matter what.

No. Obedience owed to a parent is bounded by what is right, and it never extends to participating in or enduring abuse. Protecting yourself and your children from a parent who is dangerous does not break this commandment.

The Old Testament law is irrelevant to Christians.

Catholic teaching distinguishes the moral core of the law, which endures, from the ritual and civil regulations particular to ancient Israel. The Decalogue belongs to that enduring moral core, which is why it is still taught to children preparing for the sacraments.

Scripture behind this

Exodus 20:1-3

I am the Lord thy God, who brought thee out of the land of Egypt, out of the house of bondage.

Translation: Douay-Rheims (public domain)

Matthew 22:37-40

Thou shalt love the Lord thy God with thy whole heart... Thou shalt love thy neighbour as thyself.

Translation: Douay-Rheims (public domain)

Questions people actually ask

If you want one next step

  • Read Exodus 20:1–17 slowly, stopping at the first sentence before the list begins.
  • If one commandment is a source of fear for you, read only that section here and leave the rest for another day.
  • If someone has used a commandment to keep you silent about harm, tell one safe person: a therapist, a safeguarding office, or the police.

Sources