Nobody is condemned here for living with a partner. Christian churches answer this question differently, each in its own words, and the answers range from firm to gentle.
Most of them turn on the same thing. The Bible has passages on sexual immorality, on marriage and on holiness, and the line many churches draw is about sex outside marriage rather than about sharing an address. That is why a couple who share a home without sharing a bed often get a different answer from the same church.
You might have moved in to split the rent, for a baby, or to look after a parent. You might be Catholic and wondering about Communion, or you might want to marry now and wonder what a church will ask. You might be a parent whose son or daughter has just moved in with a partner.
One safety line comes first. If the person you live with controls, threatens or frightens you, living together is never a reason you have to stay. In the United States, the National Domestic Violence Hotline is open to you, and in the United Kingdom, Refuge's National Domestic Abuse Helpline is. The full list by country is near the end.
If you only have a minute
The short answer
The Bible has no verse about two unmarried people sharing a household; its passages speak about sex, marriage and holiness.
Without sex
Some Christians say that changes the question a great deal, and others still advise against a couple sharing a home.
Catholic?
Confession is open to you, and your parish priest can talk through Communion in private.
Wanting to marry
Ask the church you hope to marry in what it asks of a couple who already share a home.
For regret
Psalm 103:12, read once, is below.
You are in large company
Pew Research Center surveyed 9,834 US adults from June 25 to July 8, 2019. Of adults aged 18 to 29, 78 percent said it is acceptable for an unmarried couple to live together even if they do not plan to marry. The same was true of 74 percent of Catholics and 35 percent of white evangelical Protestants, which shows how far churches and their members can sit from each other on this.
The pattern reaches beyond the United States. In Canada in 2021, 22.7 percent of couples were living common law, against 6.4 percent in 1981, according to Statistics Canada. In the UK in 2023, the Office for National Statistics counted cohabiting couple families as 18 percent of families.
What does the Bible say about living together before marriage?
Four passages come up again and again when this question is asked, and each has its own setting. This section also answers "Is it biblical?" and "Does God forbid it?" in the Bible's own words.
The first is from Paul's letter to the church in Corinth. In 1 Corinthians 6:12-20 he writes about the body and about union with Christ, and verse 18 says:
Flee sexual immorality! “Every sin that a man does is outside the body,” but he who commits sexual immorality sins against his own body.
Later in the same letter, Paul answers questions the Corinthians had sent him about marriage, singleness and self-control. In 1 Corinthians 7:1-9, verse 2 reads:
But, because of sexual immoralities, let each man have his own wife, and let each woman have her own husband.
Hebrews 13:1-6 is a list of exhortations to a community, on love, hospitality, prisoners, marriage and contentment. Verse 4 sits in the middle of it:
Let marriage be held in honor among all, and let the bed be undefiled: but God will judge the sexually immoral and adulterers.
The fourth is from the letter to the community in Thessalonica, a letter about holiness. In 1 Thessalonians 4:1-8, verse 3 begins:
For this is the will of God: your sanctification, that you abstain from sexual immorality,
The Greek word behind "sexual immorality" is porneia, a broad term whose reach commentators debate. Conservative commentators apply it to sexual relations outside marriage. Other scholars say its meaning depends on Jewish law, Greco-Roman practice and the immediate setting of each sentence. Either way, these passages speak about sex, marriage and holiness, and the Bible has no verse about two unmarried people sharing a household.
Moving in is often a practical decision first.
How marriages began in Scripture
How a couple became married has looked different across history, and the Bible records some of that for what the text says and nothing more. In Genesis 24:63-67, Isaac brought Rebekah into his mother Sarah's tent and she became his wife; the text does not describe a wedding process of the kind we know. In the Gospel of Matthew, Joseph and Mary are betrothed, a formal stage, and Joseph later "took his wife" (Matthew 1:18-25).
Jewish betrothal, kiddushin, was a formal legal stage, and Sefaria has the text of the Mishnah that describes it. In the Middle Ages, Church law held that present consent made a marriage, as the Cambridge University Press introduction (2007) explains. The Council of Trent in 1563 then required consent to be exchanged before the priest and two witnesses where its decree was published, as this summary of Trent describes.
That gives you some useful background. The way a marriage begins has changed across centuries and traditions, and the moral question stays with each church.
Is it a sin to live together if you do not sleep together?
Christians who read the same passages answer this one differently, and both answers are held sincerely. Some say the absence of sex changes the question a great deal. Others still discourage a romantic couple from sharing a home because of temptation, public witness or scandal.
One person put the first view plainly. In a thread posted on Reddit in r/TrueChristian on 2025-05-20, a commenter wrote, "Living in the same house is not inherently a sin." In the same thread, the poster gave a practical reason for the question: "I can’t really afford to live out on my own."
An older thread posted on Reddit in r/TrueChristian on 2020-05-07 held both sides. One reply said, "so long as the situation does not lead to temptation or sin, there are no Biblical reasons to condemn unmarried adults that live with one another." Another said, "It gives the appearance of sin."
That second line usually draws on 1 Thessalonians 5:22. Its own setting is a passage about testing prophetic claims, which is worth knowing when it is handed to you:
Abstain from every form of evil.
Adult roommates who are not a couple are generally treated differently from a romantic couple, and some strict churches apply the appearance-based advice to couples even when they say they are abstinent. So, the next step is a simple one. Ask the church you belong to how it sees a couple in your situation.
What do Christians say about living together?
Each tradition speaks in its own words, so here they are side by side.
Hover or tap a row to highlight it. Sort by a column heading; a third click puts the rows back in their original order.
| Catholic | "The expression 'free union' is erroneous. What does it mean? It means a man and a woman refusing to give juridical and public form to a liaison involving sexual intimacy." It also addresses the "right to a trial marriage." | Catechism 2390 and 2391 |
| Southern Baptist | Marriage is "the uniting of one man and one woman in covenant commitment for a lifetime," with sexual intimacy given for marriage. | Baptist Faith and Message 2000, article XVIII |
| Church of England | Marriage is a public and committed relationship before God and the community, with Living in Love and Faith (2020) as its wider conversation. | Church of England |
| Jehovah's Witnesses | Recommends against it: "Rather than help you make a good decision, living together could actually make it harder to end a bad relationship." | jw.org |
| The Gospel Coalition | Sets a public covenant before physical union and asks engaged couples not to treat living together as marriage. | 2019 video, posted 2019-07-05 |
The Catholic Church also speaks in a pastoral voice beside the rule. In Familiaris Consortio (1981), Pope John Paul II asks pastors to approach couples in this situation with "discretion and respect," "patient enlightenment," "charitable correction," and "Christian family witness." Amoris Laetitia (2016) says de facto unions may hold "constructive elements" and calls for "a gradual process of growth."
For Orthodox readers, the parish priest and the bishop take each situation in person, so your priest is the one to ask.
Can you take Communion if you live with your boyfriend or girlfriend?
This is the Catholic reader's question, and it also covers whether you can go to confession and whether it counts as a mortal sin. The answer sits in a few precise places. The Catechism, at 1385 and 1415, asks a person conscious of grave sin to receive the sacrament of Reconciliation before Communion. Canon 916 concerns a person conscious of grave sin, and canon 915 concerns those "obstinately persevering in manifest grave sin"; both are in the Code of Canon Law.
Whether something is grave sin for a particular person depends, in Catholic teaching, on grave matter, knowledge and consent. The Catechism adds that culpability can be lessened by "affective immaturity," "force of acquired habit," "conditions of anxiety," and "other psychological or social factors."
Catholic writers differ in how they apply this to a couple who share a home, especially one living as brother and sister, which generally means a couple who remain sexually abstinent. So, the action matters more than a verdict. Confession is open to you, and the parish priest, in a private conversation, is the person who can talk through Communion in your own situation.
Will God forgive living together before marriage?
A verdict on a person's life belongs to God. For the reader who carries regret, the passage Bible Nudge offers for guilt and regret is Psalm 103:8-12, a psalm of praise recalling God's character. Verse 12 says:
As far as the east is from the west, so far has he removed our transgressions from us.
It describes what God has already done with what a person carries, written in the past tense. Its question is a gentle one: "What are you still holding that this says has already been carried away?" The post on Bible verses for guilt and shame reads the passage at length.
Do couples last longer if they live together before marriage?
Studies point in different directions, and each finding is an association within a particular group, never a forecast for your couple. Older US studies reported a link between living together before marriage and later divorce, and a review of that literature sets out the findings.
Arielle Kuperberg (2014) reported that once couples are compared by the age at which they moved in together, "there is no difference in divorce rates between couples that lived together before marriage and those that didn't." Moving in or marrying very young, before about 23, was the factor that mattered.
Scott Stanley, Galena Rhoades and Howard Markman (2006) describe many couples who "slide from noncohabitation to cohabitation before fully realizing what is happening." Their idea of sliding versus deciding is about how a couple enters living together.
These are mostly US survey samples, and they describe groups. As an idea of our own, you might talk through what moving in means to each of you, out loud. That is the deciding the studies describe, and it costs nothing.
What is it called when a couple is living together but not married?
The words vary by country, and it helps to know them if your family or church uses a different one.
Hover or tap a row to highlight it. Sort by a column heading; a third click puts the rows back in their original order.
| Everywhere | Cohabitation | Living together as a couple without being married |
| Some US states | Common-law marriage | A marriage recognized without a ceremony, only where state law allows it |
| England and Wales | No common-law marriage | GOV.UK says, "'Common law marriages' do not exist in England and Wales, even if you've lived together for a long time or have children." |
| Canada | Common-law relationship | The legal term for couples living together |
| Australia | De facto relationship | The legal term used in the Family Law Act |
| Mexico and much of Latin America | Unión libre, concubinato | Informal union; in the law of some places, a long-term union with legal effects |
| Spain | Pareja de hecho | A registered or recognized domestic partnership |
| Argentina | Unión convivencial | The term in the 2015 Civil and Commercial Code |
The GOV.UK line comes from its page on legal rights and responsibilities. In Mexico, INEGI's 2020 census put unión libre at 18.3 percent of people aged 12 and over, up from 10.3 percent in 2000, in its published results.
A related question is which marriage counts before God. Churches differ on whether a civil marriage is enough or whether a believer is asked to have a church wedding as well. The post on remarrying after divorce sets out the civil and church distinction.
An ordinary morning in a shared kitchen.
We live together and want to get married now. What will the church ask?
It depends on the church, and each one publishes its own steps. A Catholic parish asks a couple to contact the priest for an initial conversation, then a period of preparation and marriage education, and a check that both are free to marry. A couple already married civilly can ask about convalidation, the process that brings a civil marriage into the Church's form.
A Church of England wedding involves banns or other legal preliminaries and meetings with the minister, as Your Church Wedding explains. Evangelical and Baptist churches commonly ask for premarital counseling and a conversation with the pastor, and policies differ by congregation.
Some churches ask a couple to live apart or abstain before the wedding, some ask for confession, and some simply begin the ordinary preparation. So, the honest step is to ask the church you hope to marry in what it asks of a couple who already share a home.
A church may also use a preparation program, such as FOCCUS, PREPARE/ENRICH, SYMBIS or Alpha's Marriage Course.
If you are not ready to marry, or never plan to
The practical question is what happens if a partner dies or the couple separates, and the answer depends on where you live. This is information, and a lawyer or a legal-information service gives advice.
- United States: common-law marriage exists only in a few states, and Social Security survivor benefits generally depend on marriage or a recognized legal relationship.
- England and Wales: unmarried partners do not automatically inherit without a will, as GOV.UK explains above.
- Scotland: cohabitants can have limited claims under the Family Law (Scotland) Act 2006, as Citizens Advice Scotland describes.
- Canada: rights vary by province, so ask your province's legal-information service.
- Australia: the Family Law Act 1975 covers de facto relationships for property and maintenance.
- Spain: survivor pensions for parejas de hecho have their own conditions, set out by Spanish Social Security.
- Argentina: the 2015 Civil and Commercial Code recognizes the unión convivencial, per Argentina.gob.ar.
Free routes to ask: LawHelp.org in the United States and Citizens Advice in the UK. As an idea of our own, a couple who share a home and are not married could write a will this year.
Things people say, and kinder words to use instead
Some lines said to couples who live together land hard, and you may have heard one or said one. A woman posted on Reddit in r/OpenChristian on 2026-04-07 about moving in with her boyfriend. She wrote that a relative told her, "He tells me that because I’m baptized, God will harshly punish me for living with my boyfriend before marriage." A line later she added, "We’ve talked a lot about our future and want to build a family together one day."
Kinder words are marked here as the site's own wording. In place of "You are living in sin" or "shacking up," try "I'd love to hear how you two are doing, and what you're hoping for." In place of "You will get a divorce," share the studies above and say, "Whatever you decide, I hope you talk it all through together."
In place of "You cannot receive Communion," try "Your priest can talk that through with you, and I'm glad you're asking." In place of "Just get married and everything is solved," try "Take the time you need to decide together." To a child of unmarried parents who has heard the word "illegitimate," say "Your family is a family."
If you are a parent whose grown son or daughter has moved in, one idea of our own is to keep the door open and keep the Sunday dinner invitation the same. Say what you believe once, kindly, and then let it rest. The Catholic Church's own pastoral wording points the same way, with its call for "discretion and respect."
Questions people ask
Can adult roommates who are not a couple share a home? The passages above speak about sex and marriage, and roommates who are not romantically involved are generally treated differently from a couple. Churches that advise against a romantic couple sharing a home usually do not apply the same advice to friends or relatives.
Is common-law marriage real? In some places it is, and in others it is not. Only a few US states recognize it, England and Wales do not, and Canada uses a common-law relationship that varies by province.
Will a church refuse to marry us because we live together? Policies differ by church. Some begin the usual preparation, some ask for a conversation first, and some ask a couple to live apart or abstain, so ask the one you hope to marry in.
Where to go next
If the person you live with is controlling or frightening you, these routes are for you:
- United States: the National Domestic Violence Hotline, call 800-799-7233, text START to 88788, or use the chat on its site.
- United Kingdom: Refuge's National Domestic Abuse Helpline on 0808 2000 247.
- Australia: 1800RESPECT on 1800 737 732.
- Canada: the directory of provincial and territorial services.
- Spain: the 016 service.
- Argentina: Línea 144.
If a night gets heavier than this, please reach a person. In the United States, call 988, text 988 or chat with the 988 Suicide and Crisis Lifeline; help in Spanish is at 988lifeline.org/es. In Canada, call or text 9-8-8. In the United Kingdom and Ireland, Samaritans is on 116 123. In Australia, Lifeline is on 13 11 14. In Spain, there is the 024 line. Everywhere else, including Mexico and Colombia, Find A Helpline lists services by country.
Some questions are easier to take to a person than to settle alone.
This week, write down the one question you most need answered, whether it is about Communion, a wedding or what your church asks, and take it to the priest or pastor of your own church, together if you can.
Bible Nudge offers one passage with the verses around it for what you are carrying. Find a passage.
Words that come up here
Tap a term to see what it means.
Cohabitation. Living together as a couple without being married.