But Is It Actually a Sin?

There is a question Christians ask that sounds perfectly reasonable but can sometimes reveal that we are asking completely the wrong thing: “But is it actually a sin?”

To be fair, it is not a stupid question. Sin matters. Scripture matters. We absolutely should care about what God has and has not commanded. The problem comes when that question becomes our entire approach to Christian living. Can I watch this? Can I drink that? Can I go there? Can I spend this much? Can I do this thing if there is not a verse somewhere that specifically says I cannot?

Before long, following Jesus starts to look less like discipleship and more like trying to find the loopholes in a mobile phone contract.

How close can I get to the line without technically crossing it?

That is a very different question from, “What kind of person is Jesus forming me into?” Christian maturity is not just about avoiding things explicitly labelled SIN in big red letters. It is about wisdom, self-control, conscience, love, witness and sometimes willingly laying down freedoms because something more important is at stake.

Not Everything Permissible Is Beneficial

Paul writes, “‘I have the right to do anything,’ you say, but not everything is beneficial” (1 Corinthians 6:12). Later he adds, “not everything is constructive” (1 Corinthians 10:23).

That is annoyingly inconvenient.

Paul does not simply ask whether something is allowed. He asks whether it is good, whether it builds and whether it moves you towards Christ.

There are plenty of things that might not fit neatly into a category marked “sin” but are still a terrible idea. You can spend six hours scrolling your phone without technically breaking one of the Ten Commandments. You can spend money you technically have. You can say something completely true in a deliberately cruel way and defend yourself with, “Well, I didn’t lie.”

Congratulations. You have proved that being technically correct and being Christlike are not the same thing.

The question is not simply, “Can I?” It is, “What is this doing to me?”

I remember this becoming very real for me when I was younger, before I married my wonderful wife. A lot of my non-Christian friends simply could not believe that we had not had sex before marriage. Once they realised I was serious, several of them started trying to find me a workaround. If that was off limits, what about this? What about that? Surely this did not technically count?

What they struggled to grasp was that I was not trying to discover how close I could get to sexual sin without technically crossing the line. I was trying to honour God with that whole area of my life.

And strangely, once they realised that, many of them respected it.

They still did not agree with me, but they could see that my faith actually meant something when it became inconvenient. Sometimes people will not understand our convictions, but they can still recognise when they are genuine.

Your Conscience Matters, But It Isn’t Always Right

Paul writes, “Whoever has doubts is condemned if they eat, because their eating is not from faith; and everything that does not come from faith is sin” (Romans 14:23).

He is dealing with Christians who had different convictions about food. Some felt completely free to eat. Others believed doing so would be wrong. Paul does not simply tell the second group, “Relax. You’re wrong. Have a sausage.” He takes their conscience seriously.

If you genuinely believe something would be disobedient to God and you do it anyway, even if the thing itself is not inherently sinful, you have still chosen to do something you believe God does not want you to do. The issue is not merely the action. It is the attitude that says, “I believe this dishonours God, but I am doing it anyway.”

But there is an important complication. Your conscience can be wrong!

“I don’t feel convicted about it” is not the Christian equivalent of a permission slip. Our consciences are shaped by upbringing, church culture, experiences, desires, habits and our remarkable ability to explain ourselves to ourselves.

Our conscience therefore needs Scripture, the Holy Spirit and wise Christians around us. Sometimes it needs reassuring because it condemns something God permits. Sometimes it needs confronting because it has become comfortable with something God does not.

Your conscience matters.

But it does not outrank Scripture.

Your Freedom Can Become Someone Else’s Trap

Paul says, “Make up your mind not to put any stumbling block or obstacle in the way of a brother or sister” (Romans 14:13). In 1 Corinthians 8 he goes even further: “When you sin against them in this way and wound their weak conscience, you sin against Christ” (v.12).

You are free to tap dance on your roof if you really want to. It would be bizarre, your neighbours would have questions, and depending on the state of your tiles it might become a very expensive afternoon, but there is no biblical commandment saying, “Thou shalt not perform jazz hands above the guttering.”

But if you decide to do it in front of a group of children, your freedom has suddenly become a danger to somebody else. You might have the balance and experience to stay away from the edge. They probably do not. And the moment your back is turned, one of them is going to think, “That looked brilliant,” drag a chair over to the shed and have a go.

At that point, saying, “Well, I was perfectly safe up there,” completely misses the point.

Your freedom was real. But so was your responsibility.

That is essentially Paul’s argument about Christian liberty. The question is not only whether I am personally capable of doing something without falling. I also have to consider what my example might encourage somebody else to attempt.

Sometimes love means staying off the roof.

Take alcohol. Scripture does not teach that drinking alcohol is inherently sinful. Perhaps you can have a few drinks without becoming drunk or trying to fight a lamppost on the way home.

But what happens when another Christian sees you?

Maybe they have a very different relationship with alcohol. Maybe they believe drinking would be wrong for them, but seeing you do it gives them permission to copy you. They drink while still believing they are disobeying God.

The alcohol has not suddenly become universally sinful. The problem is that they have violated their conscience. And Paul says that if I knowingly exercise my freedom in a way that causes them to stumble, I am not innocent simply because I could technically do it.

That gives us three important principles. My conscience may forbid something Scripture permits, so I should not violate it. My conscience may permit something Scripture forbids, so my conscience needs correcting. And my conscience may permit something Scripture permits, but love may still lead me to put that freedom down.

The mature question is not merely, “Am I free to do this?”

It is, “Can I exercise this freedom lovingly?”

Your Life Says Something About the Gospel

Peter writes, “Live such good lives among the pagans that... they may see your good deeds and glorify God” (1 Peter 2:12).

Protecting your witness does not mean protecting your reputation at all costs. Jesus ate with tax collectors, spent time with social outsiders and was regularly criticised by respectable religious people. You cannot control every accusation or raised eyebrow.

But there is a difference between being criticised because you are faithfully following Jesus and being criticised because you are behaving foolishly.

If I tell people Jesus has transformed my life, then my life inevitably becomes part of the evidence they are looking at. Not evidence of perfection, but evidence of direction. More patience. More integrity. More generosity. More self-control. More humility. More grace.

If someone spends years around me and the only visible difference Jesus has made is that I disappear for a couple of hours on Sunday morning, something has probably gone wrong.

The gospel is meant to produce fruit.

Wisdom Doesn’t Volunteer for Temptation

There is one final problem with living close to the line: we are not nearly as strong as we think we are.

Scripture says, “Flee from sexual immorality” (1 Corinthians 6:18) and “Flee the evil desires of youth” (2 Timothy 2:22).

Flee.

Not negotiate. Not investigate. Not hang around for forty-five minutes explaining why technically nothing sinful has happened yet.

Sometimes holiness looks less like heroic resistance and more like not putting yourself in the situation in the first place. If alcohol lowers your judgement, create boundaries before drink number four starts offering theological opinions. If a friendship is becoming emotionally inappropriate, do not wait for something dramatic to happen. If certain environments consistently pull you backwards, stop returning just to prove how spiritually strong you are.

Boundaries are not necessarily evidence of weakness.

Often they are evidence of self-awareness.

Ask a Better Question

So “Is it actually a sin?” is not necessarily a bad question. It just cannot be the only one.

Is it beneficial? Is my conscience being shaped by Scripture? What does this communicate about Jesus? How might my example affect somebody else? Am I unnecessarily placing myself or others near temptation?

Those questions will not always produce identical answers for every Christian. That is where Scripture, conscience, wisdom and Christian community matter.

But the goal of following Jesus was never to discover the maximum amount of questionable behaviour we can squeeze into the phrase “Christian freedom.”

The goal is Christlikeness.

Sometimes that means stepping away from something we could technically defend because there is something more important to protect: our own hearts, the faith of people around us, our witness and the credibility of the gospel we claim has changed us.

You might be free. But love still gets a vote.