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By Erich Schoeman | Clinical Psychologist
When people first hear the word boundaries, it can sound strange. We understand boundaries between countries. We understand boundaries between neighbours. We understand the wall, the fence, the gate, the electric fencing, the dogs, the cameras — especially if you live in South Africa, where some houses are beginning to look like something out of an action movie.
But boundaries between people? And even more, boundaries in marriage? That can feel a little strange at first.
After all, marriage is supposed to be a place of closeness. It is the relationship where a man and a woman share life together in a very deep way. They share emotions, time, space, finances, bodies, children, responsibilities, dreams, disappointments, and spiritual life. The Bible speaks about husband and wife becoming one flesh. So, if marriage is about oneness, why do we still need boundaries?
The answer is simple: because oneness does not mean the loss of personhood.
A husband and wife become one in covenant, but they do not become one person. They remain two people before God, each with their own thoughts, feelings, needs, responsibilities, history, body, conscience, and calling. Healthy boundaries help those two people live together in love without losing themselves or controlling one another.
Boundaries in marriage are not walls that shut your spouse out. They are lines of responsibility that help protect the relationship. They help define what is mine, what is yours, and what we share together. They help us know how we will treat each other, what we will allow, what we will not allow, and what each person must take ownership of.
In that sense, boundaries protect both people. They protect you from being manipulated or exploited, but they also protect your spouse from your own unhealthy behaviour. They help you take responsibility for your needs and feelings, and they also call you to care about your spouse’s needs and feelings.
That is very important.
A boundary does not say, “This is my side of the fence, so get out.” Not in marriage. A boundary says, “I want us to love one another well, and for that to happen, we need honesty, responsibility, respect, and truth.”
The Closest Relationship Needs the Healthiest Boundaries
Marriage is one of the closest and most vulnerable relationships a person can be in. That is why boundaries are not less important in marriage. They are more important.
If I have poor boundaries with a neighbour, it may be irritating. If I have poor boundaries with a co-worker, it may affect the workplace. But if I have poor boundaries with my spouse, it affects the atmosphere of the home, the level of intimacy, the emotional safety of the relationship, and often the children as well.
A marriage without healthy boundaries usually moves into one of two extremes. Either there is too much closeness without enough truth, and the relationship becomes full of resentment, emotional pressure, manipulation, and unspoken expectations. Or there is too much distance, where the couple lives in the same house but avoids honesty, conflict, vulnerability, and real connection.
Neither extreme is healthy.
A healthy marriage lives somewhere in the middle. There is closeness, but also freedom. There is love, but also honesty. There is sacrifice, but also responsibility. There is care for the other person, but not control of the other person. That is where boundaries help.
Boundaries Help You Take Responsibility
One of the greatest gifts of boundaries is that they help you take responsibility for your own actions instead of simply blaming your spouse. This sounds simple, but it is not easy.
In marriage, it is very tempting to say, “If only my spouse would change, then I would be fine.” And yes, your spouse may genuinely be hurting you in some ways. They may be selfish, absent, critical, passive, controlling, or emotionally unavailable. Those things matter, and they may need to be addressed.
But boundaries always bring us back to the question: what is my responsibility here?
You cannot control your spouse’s behaviour. You cannot force them to listen. You cannot force them to repent. You cannot force them to love you well. You cannot force them to change. But, you can take responsibility for your own words, your own reactions, your own honesty, your own obedience to God, your own communication, your own choices, and your own limits.
That is where freedom begins.
Many people in unhappy marriages become so focused on the other person’s behaviour that they lose sight of their own. They watch their spouse, measure their spouse, analyse their spouse, react to their spouse, and then become defensive when the spouse does not change. This often becomes a dance. I act, you react. You react, I react again. Around and around we go.
Boundaries interrupt that dance. They say, “I cannot control you, but I can take responsibility for me.” That is not weakness. That is maturity.
Love Is a Boundary
The first and most important boundary in marriage is love. This may sound unusual, but love is something I must take ownership of. I cannot wait until my spouse behaves perfectly before I decide to love. I cannot say, “I will only be kind when you are kind. I will only be respectful when you are respectful. I will only be faithful when you meet all my needs.”
That is not love. That is reaction.
Christian love is rooted in the love of God. We love because He first loved us. The love of Christ becomes the foundation from which we learn to love sacrificially, truthfully, and faithfully. But then we must ask an honest question: how does sacrificial love work with boundaries?
Does sacrificial love mean I give and give and give until I burn out, while my spouse takes and takes and takes? Or do boundaries mean I stand up for myself and fight for my rights all the time? Neither is the full picture.
Love is not selfishness, but love is also not dishonesty. Love is not control, but love is also not passivity. Love is not merely a feeling in the stomach — although feelings are wonderful. Sometimes butterflies in the stomach are love, and sometimes they are just nausea from hanging out of a window on the twenty-seventh floor!
Biblical love is deeper than infatuation. It is a choice. It is an act of the will. It is choosing to seek the good of the other person before God. It is deciding, “I will treat you with kindness, truth, faithfulness, and respect, even when it is difficult.” That is a boundary because I take ownership of how I will love.
Freedom, Responsibility, and Love
A healthy marriage needs freedom, responsibility, and love. These three belong together. Where there is no freedom, love becomes control. One person dominates, and the other lives in fear or resentment.
Where there is no responsibility, freedom becomes selfishness. A person says, “I can do whatever I want,” but does not consider how their behaviour affects their spouse.
Where there is no love, boundaries become cold rules. The relationship may become efficient, but not warm.
So we need all three.
Freedom means I can speak honestly. I can say yes. I can say no. I can disagree. I can have a preference. I can express a need. I can be myself before you without being punished for it.
Responsibility means I do not use my freedom to harm you. I take ownership of my words, my tone, my actions, my anger, my sexuality, my finances, my time, my faithfulness, and my emotional life.
Love means I do all of this with your heart in mind. I am not trying to win against you. I am trying to build with you.
When these three work together, marriage becomes safer.
Honesty Is Essential
One of the major reasons resentment builds in marriage is that people are not honest. They say yes when they mean no. They keep quiet when something is bothering them. They agree outwardly but complain inwardly. They give, but begrudgingly. They serve, but later punish the spouse with coldness or criticism.
That is not healthy.
If you say yes when you truly mean no, you have not respected your own boundary. But you have also not loved your spouse well, because you have not been truthful with them.
This does not mean you must say no to every inconvenience. Marriage requires sacrifice. If you are married, you are not a single person anymore. You have chosen to give yourself to another person. You cannot simply live for yourself and then call it boundaries. But sacrifice should be chosen, not forced.
If I freely choose to give, even when it costs me, that can be love. But if I am forced, manipulated, guilted, or controlled into giving, that is not the same thing.
There is a difference between a willing sacrifice and a coerced yes.
Self-Control Is a Boundary
Another important boundary in marriage is self-control. If my spouse is rude to me, I am still responsible for how I respond. That does not mean I pretend it is fine. It means I do not simply react like a child and say, “You were rude, so now I will be rude back.”
That is easy. Anyone can do that. Boundaries ask more of us.
A more mature response may be, “I want to talk about this, but if you continue speaking to me like that, I am going to stop this discussion and come back to it later.” That is not punishment. That is self-control.
Conflict is not the problem. Conflict can be constructive. It can help a couple understand one another, work through differences, and repair what has been damaged. But fighting is different. Fighting is where self-control is lost. Words fly around. Shame enters. Blame enters. People say and do things that damage trust.
Boundaries help us keep conflict from becoming fighting.
Submission and Sacrifice Are Not Forced
In Christian marriage, we also need to speak carefully about submission and sacrifice. A wife’s submission to her husband does not mean she has no voice, no needs, no boundaries, and no value. A husband laying down his life for his wife does not mean he becomes resentful, passive, or dishonest. Both husband and wife are first submitted to the Lord. This is very important.
Biblical submission and sacrificial love are not forced. They are responses to God. A wife honours her husband as unto the Lord. A husband lays down his life because Christ laid down His life. Both are acts of worship before God, not tools for one spouse to control the other. If submission is used to silence, dominate, or control, then it has been distorted. If sacrifice is demanded rather than freely given, then it is no longer Christlike love.
Healthy boundaries help protect biblical love from becoming religious manipulation.
Faithfulness as a Boundary
Faithfulness is another major boundary in marriage. It creates safety. It reassures your spouse that your love is not merely words. It says, “This relationship is protected. I am not giving myself emotionally, sexually, or romantically to someone else.”
Faithfulness is not only about avoiding adultery. It also includes emotional and relational boundaries. How do I relate to people of the opposite sex? What private conversations am I having? What do I hide from my spouse? Where am I creating emotional intimacy outside the marriage that should belong inside the marriage? Couples may work out the details differently, but the principle is the same: faithfulness protects trust.
And trust is very hard to rebuild once it has been broken.
Boundaries Are Not About Punishment
Boundaries in marriage are not about fixing, changing, punishing, or controlling your spouse. They are about building, protecting, and loving. This matters because some people use the language of boundaries in a selfish way. They say, “That crosses my boundary,” when what they really mean is, “You are not doing what I want.” They use boundaries as a weapon to accuse, control, or withdraw.
That is not healthy boundaries. That is just another form of fighting, dressed up in psychological language. A real boundary says, “This is what I can do. This is what I cannot do. This is what I need to communicate honestly. This is what I will take responsibility for. This is how I will protect the love and safety in this relationship.”
The goal is not distance. The goal is love that can survive honesty.
Final Thoughts
Boundaries in marriage are not cold. They are not unspiritual. They are not selfish. They are not the opposite of love. Healthy boundaries help love become more honest. They help both spouses take responsibility. They help prevent resentment. They help us say yes freely and no truthfully. They help us stop blaming and start growing. They help us love without controlling and sacrifice without losing ourselves.
No marriage does this perfectly. My marriage has not always done this perfectly. Yours will not either. We all have places where we need to grow, repent, forgive, speak more honestly, listen more carefully, and take responsibility more deeply.
But when both people begin to work with freedom, responsibility, and love, something beautiful can happen. The marriage becomes safer. The communication becomes more honest and the love becomes more real.
And the relationship becomes a place where two people can grow before God, not by controlling one another, but by learning to love one another with truth.
Read next: Practising Boundaries in Marriage.