Explainer
Creed
Seven Deadly Sins
Sin
7 min read

Sin: explained

From rottweilers to North African bishops, Graham Tomlin kicks off the Seven Deadly Sins series with an introduction to the unpopular idea of ‘sin’.

Graham is the Director of the Centre for Cultural Witness and a former Bishop of Kensington.

Seven Deadly Sins
Illustration generated by Dan Kim using Midjourney.

A little while ago I went for a health check. They took a blood test, weighed me on the scales, poked me around a bit. Soon afterwards, I got a printout of my general health. It told me that my blood pressure and liver function was pretty good, but I ought to watch my cholesterol, my calcium levels could be a bit higher, and my folate result was not great (whatever that is). 

It told me a lot about my physical health. What it didn’t tell me was anything useful about my spiritual and moral wellbeing. I began to wonder where I could get a spiritual health check? Is there a way of telling whether I am in danger of diseases that might affect my soul rather than my body?  

As it happens, the Christian church has long had a spiritual health check - a kind of ticklist for spiritual and mental wellbeing – it’s called the Seven Deadly Sins. And over the next few weeks, here on Seen & Unseen, we’ll be running a series on it – think of it as a chance to check out your own spiritual wellbeing.  

Of course, the word ‘Sin’ has a chequered past. Peccatio, Pèche, Sünde, Sin – whatever language it came in, it was once a terrifying word – a word that struck fear into the heart of almost every European. It had the same kind of emotional effect as words like ‘Nazi’, or ‘cancer’ do for us today. It was something you wanted to avoid at all costs, something dreadful and dangerous.  

Now, it has changed from a rottweiler into a poodle. ‘Sin’ has been calmed down, domesticated, neutered. The word is now usually spoken with a smirk, or a heavy dose of irony. Describing something as ‘sinful’ usually means you think it is naughty but nice, or even seductive. We get perfumes called ‘My Sin’, or even a bakery called ‘Sinful Cakes’. Po-faced people who denounce something as ‘sinful’ seem to just want to stop other people enjoying themselves.  

They waged a constant, subtle and undermining war against the inner self – they were the deadly enemy of the soul.

Yet there were reasons why the word ‘sin’ had such a ghastly aura about it in the past. Sin was not harmless transgression of some random moral code invented by repressed and frustrated medieval clerics. For our ancestors, ‘sin’ described a pattern of life that was quite simply destructive. Each of the seven deadly sins were a sign of spiritual poor health just like a raised PSI count might be a sign of prostate cancer, high blood pressure a sign of the risk of a heart attack and so on. Sins like greed, anger, lust and pride could destroy families, friendships, happiness, peace of mind, innocence, love, security, nature, and most importantly, our bond to our Creator. They wrenched us out of our proper place in the world, which is why it’s worth knowing whether you’re suffering from them or not.  

A passage in the Bible talks of “sinful desires, which wage war against the soul.” That captures it well. These impulses or patterns of behaviour were not just arbitrarily wrong, but self-destructive. They waged a constant, subtle and undermining war against the inner self – they were the deadly enemy of the soul. Sin was a like a virus that got into everything, so that although life carried on, it never quite worked in the way you felt it ought to. Life always had that grit in the oyster, the nagging soreness of a shoe that doesn’t fit, the reminder of a dark secret that wouldn’t go away.  

In many people’s minds, ‘sin’ means simply ‘breaking the rules or the law’. The difficulty with this idea is that it fails to get to the heart of the issue. An insistence on rules alone is often a sign of a shrivelled, arid moral vision. It’s what makes disapproving busybodies and prudes. Laws exist to protect things that are more important than laws, like human lives, families, marriages, reputations, communities and peace. They are not ends in themselves. Rules and laws are vital for the protection of goodness, but do not itself go to the heart of goodness – they simply try to ensure its survival.  

Life would be simple if things that were bad for us were ugly and things good for us were beautiful. 

One traditional way of thinking about sin was to classify it into types. Our ancestors were shrewd enough to know they needed to know their enemy. The idea of the ‘Seven Deadly Sins’ emerged from the early centuries of the Church as a neat way of remembering the some of the chief ways in which this deadly pattern of behaviour manifested itself.  

A glance through the traditional list of the seven deadly sins raises an obvious issue for anyone with any sense of contemporary life and morals: these are not the ones we’d identify as the chief causes of evil in our world. If anything, our culture tends to admire these qualities, not avoid them. Lust is a sign of a healthy sexual appetite, Pride a perfectly valid pleasure in our own achievements, and Greed an essential motor for the economy. Lust, envy and gluttony sell porn websites, cars and food, so naturally there are powerful forces dedicated to encouraging these habits to grow as rampant as possible in our souls and societies.  

Of course, our forebears were not all as innocent as we might think. Of course they didn’t all detest sin because it has always carried a very real and powerful attraction. And unless we grasp this, we will never understand it. Life would be simple if things that were bad for us were ugly and things good for us were beautiful. But life isn’t like that. As the great St Augustine said of his own younger tendency to steal just for the sake of it: “It was foul, and I loved it”.  

The great works that have dealt with sin in the past had a simple aim, to uncover the ugliness of sin, and unmask the veneer of attractiveness that it wears. Dante’s great Divine Comedy did it by showing what these patterns of behaviour led to. It showed how each received its fitting punishment in a vision of such elegant symmetry that it seemed so obvious. In Dante’s imaginary hell, the angry are condemned to fight each other for eternity; the slothful or indolent are condemned to running constantly and breathlessly; gluttons are made to lie in mud, exposed to constant rain and hail just like pigs, and end up eating rats, toads and snakes, as a parody of their excessive greed. 

Illustration by Jennifer Strange Keller 

Illustration of Dante's Inferno

Yet strangely, each sin always has at its heart something good. Medieval artistic depictions of sins portrayed them as misshapen and deformed versions of some good quality. The reason is not hard to find. Lust takes the delights to be found in sexual desire and satisfaction and distorts it into an uncontrollable, damaging enslavement. Gluttony twists the pleasures of succulent roast beef and a glass of dark red Beaujolais and turns them into bloated, sickly over-consumption.  

There is always something of the grotesque about sin. In old fairgrounds, there was always one stall where you would place yourself in front of odd-shaped mirrors, which would exaggerate parts of your body and shrink others. The result was on the one hand funny but at the same time, slightly frightening. Sin does the same thing. It takes something beautiful and makes it ugly by twisting it out of shape, so that it bears enough resemblance to the original to retain its attraction, but when seen in its full light, is as ugly as… well, sin. On one level, it’s funny. Most of our jokes revolve around the grotesque - things out of place, misshapen, strange. Yet there is a dark side as well and it is that that these medieval imaginative poems tried to unveil. Theologian Cornelius Plantinga says: “a sinful life is a partly depressing, partly ludicrous caricature of genuine human life.” 

A woman in a hall of mirrors, circa 1935. 

Marilyn Monroe Funhouse Mirror

Although it can seem a monstrous and terrifying power that threatens to overwhelm everything, in the end, evil can only ever distort something that is at its heart good. Evil cannot create anything, it simply twists, caricatures, or destroys. Sin is always a parody, a type of behaviour that often looks vaguely like goodness, and often likes to pretend it is, and it sometimes takes some moral and spiritual discernment to tell the difference. Yet a difference there surely is, and the ability to tell good from evil is a real sign of human and personal maturity. But the reason why it is often difficult to tell is that sin always has at its heart something good. A fit of temper against a brother or sister or child usually justifies itself by the behaviour that provoked it in the first place, which probably was out of order; jealousy or envy persuades itself that it is really proper outrage against the deep injustice that has given to someone else what I really deserve.  

This means of course that however monstrous sin or evil are, in the Christian view of the world, they are ultimately trivial and pathetic when compared to real goodness. St Augustine struggled all his life to understand the nature of malevolence. Towards the end of that life, the reality of evil began to recede from his attention, to be replaced by something much bigger. As Cambridge historian Gillian Evans put it:

“Where first he had been aware of (evil’s) perverseness and emptiness, its huge darkness, its hopeless entangled knottiness, now at last perhaps he had come to feel its essential triviality in comparison with the light and power of the Good.” 

In the coming weeks, here on Seen and Unseen, we will be asking some of our regular contributors to write on each of the Seven Deadly Sins, analysing how they work their deadly poison, both in the past and in contemporary society. Keep an eye out for each article as they come – it might just be the spiritual health check you need.  

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Belief
Creed
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12 min read

Walking the Camino gave me blisters, good company, and these seven lessons

220 kilometres of questions

Jessica is a Formation Tutor at St Mellitus College, and completing a PhD in Pauline anthropology, 

A pilgrim with a red backpack heads off.
Shirley Roots, CC BY 2.0, via Wikimedia Commons.

It was Sunday night, and I was packing my bag. On Monday, I flew to Porto, Portugal, to begin walking a stretch of the Camino de Santiago. I had taken some extended leave from work to mark 10 years of working and wanted to take some time to reflect and hear from God. As I was packing, I was listening to a sermon online. The preacher suddenly said, “You don’t need to walk the Camino de Santiago to hear from God!” Ah. Good point. Nevertheless, it was all booked, so I set off to embark on this pilgrimage.  

The Camino de Santiago is a popular pilgrimage route, with a network of routes all leading to the Cathedral of Santiago de Compostela, the resting place of the apostle St James. On average, around 200,000 pilgrims complete The Way of St James each year, with 2024 closing in on half a million pilgrims. 

They say the Camino “calls” you, and for whatever reason, people respond by walking hundreds of kilometres. I set out on this pilgrimage with a backpack and some good walking shoes (or so I thought), hoping for some time out, beauty, and time and space to hear from God. What I didn’t anticipate was how the Camino would hold up a mirror to my inner life, revealing patterns and lessons I didn’t know I needed. 

The Camino was many things, but above all, it was a space. Space to be and reflect on the little lessons along the way. Here are the seven things that walking 220km of the Camino de Santiago taught me.  

It is ok for questions to be left unanswered 

There is a general thought on the Camino that most pilgrims come with a question. Something we are mulling over while walking, perhaps hoping for a resolution when the walk culminates in Santiago de Compostela. It is therefore not uncommon for one of the first things people ask you whilst walking to be “What question are you bringing to the Camino?” Which is a bold question from a stranger who doesn’t know my last name. Nevertheless, these kinds of questions are what bond you with others so quickly, as you share stories of what has led you to walk this path. There was a question I was carrying with me. One that was unanswered.  

In the evenings and quieter afternoons, I had space to read. I had a Kindle and was enjoying having multiple books at my disposal. I was re-reading Augustine’s Confessions. In Book 6, he writes about humanity's longing for our questions to be answered; he writes, “for it is better for them to find You (God) and the questions unanswered, than to find the answers without finding You.” I stopped still. There are many things in life for which we don’t have the answer, often related to pain, suffering, or injustice. A friend once reminded me of the story of Job in the Bible. A man who experiences deep pain and suffering. When Job confronts God and asks Him repeated questions about why he let this happen, God doesn’t answer any of his questions; instead, He questions Job. Job is left in awe of God and his character, proclaiming, “Surely I spoke of things I did not understand, things too wonderful for me to know.”  

There are questions we carry in life, but the words of Augustine and the story of Job reminded me that if we find God, our unanswered questions are safe in the arms of those strong enough to carry them. It was a helpful reminder that not all the questions we have need an answer. There is a possibility of being content with the unknown. 

We are better, together  

I wasn’t going into this walk to make friends. For me, it was a spiritual pilgrimage to hear from God and reflect on my life. I thought I would spend my days in silent contemplative prayer, blissfully gazing upon God’s creation and skipping from town to town. This all changed at the end of day two. About 50 kilometres into my walk, I developed some terrible blisters. My shoes (which fit perfectly before) had started to rub and gave me the worst blisters I have ever had. The Portuguese coast was hot, and I’d gone the wrong way, so I spent around five kilometres walking alone. I arrived at my Albergue that evening broken and in pain.  

After dinner, I was tending to my broken feet when a girl I had zig-zagged with on the walk came to chat. We’ll call her, Evie. I admitted I was finding this all really hard, and Evie shared the same, only her day had been lifted by walking with another pilgrim. She had also begun the day hobbling in pain along the path, but when she got chatting to another pilgrim, she was no longer focusing on her pain, but on the conversation with another.  

 The next morning, I set off, hobbling along the path, and questioned how I would be able to complete the day’s 28 kilometres. When I was behind, I heard someone shout “Jess!”. It was a girl I had shared a bunk with on the first night at the hostel, Jamie. She arrived like an angel the Lord had sent to help me get through today. There was no way I was going to make it on my own. We spent the day walking, talking, and getting coffee, passing the time until all of a sudden, we found ourselves in the next town. I’d done it! We’d done it.  

This taught me that my pain can often draw me inwards, and when our pain is all we see, the journey ahead feels impossible. However, turning outward and sharing with those around us takes our attention away from our own experience and allows us to see the other. Christians say we are all part of the “body of Christ”, as the apostle St Paul described us - called to “bear one another’s burdens”.  As it turned out, walking and journeying with others would be one of the biggest gifts of this Camino. Sharing and travelling with one another’s joy and pain made the way ahead seem so much more hopeful.  

It is important to address things when they are small 

I learned this the hard way—through a blister. Around the 20-kilometre mark on the first day of the walk, I began to feel that tell-tale “hot spot” on my little toe. What I should have done then and there was stop, remove my shoe, and treat it with a blister plaster. But instead, I pushed on for another 15 kilometres, determined to reach the hostel without delay. By the time I arrived, my toe had swollen to three times its usual size, and the damage was done. The situation got so bad that I had to buy new shoes halfway through the Camino, and gained another 10 blisters across both feet for good measure.  

Looking back, it was a minor issue that quickly escalated into a much bigger one because I ignored it. It’s a lesson that extends beyond foot care. Tiny irritations, unhelpful habits, or unresolved tensions can quietly build momentum until they begin to shape us in a negative way. It is an age-old human trait. Another book that accompanied me on this pilgrimage was the Bible. A text I had walked with my whole life.  In the Bible, these unhelpful habits are frequently referred to as “sin”. The building up of things in our life that do not make us fully alive. Walking, I reflected on the little habits I form or the thoughts I allow to take hold begin to form and shape me in ways I might not be aware of until it is too late. As I tended to my broken feet each evening, it was a reminder that it is helpful to pause and address things when they are still small, to pray and bring them before God. It makes for a much more enjoyable journey. 

It is never too late to turn around 

I did this walk alone, with the gracious support of my husband, who sadly couldn’t get the time off work. My husband and I enjoy hiking together, and when we do, he has the role of “map reader.” Without him here, I was now responsible for navigating my route each day and picking the right course. There was one morning when I set off early with no other pilgrims around. On this day, I intended to hug the coast, always keeping the sea on my left, as this walk was much flatter and shorter than an alternative route that took you inland across varying terrain. 

As my day started, I realised I was heading away from the sea and up and out of town. This wasn’t the route I’d planned. I paused to look at my map and realised I was following the wrong one. What do I do? I was 15 minutes in the wrong direction. In that moment, I remembered something my husband had once said on another hike when we went the wrong way: “It is never too late to turn around.” I did just that. Swallowed the loss of 15 minutes the wrong way to get back on course.  

In life, there are times when we think we have gone too far down the wrong path, that we are beyond the point of no return. But in God’s story of grace, it is never too late to turn around. No detour is final. We are always invited to course-correct, to reorient ourselves toward truth, peace, and purpose. Sometimes, the holiest thing we can do is stop, look honestly at where we are, and have the humility to turn back. Even a misstep can become part of the pilgrimage if it eventually leads us back home.  

Rest is not failure. 

I made a rookie mistake in planning this walk: I didn’t plan a rest day. “How hard can walking for 10 days be?” I thought to myself. Turns out, very. My feet were painful. My blisters had blisters. I couldn’t stand without winching in pain. But I wanted to finish. So, I need to rest. One day, I decided to surrender my trainers and take the train. I felt like a failure.  

One of the repeated instructions in the Bible given to God’s people to live well is to “keep the sabbath holy”. To set one day of rest aside each week, as we see God do in creation, and how he commands his people. In our high-paced Western society, taking time off to stop and disconnect can feel counter-cultural. Walter Brueggemann discusses how the sabbath is an act of resistance to our consumer-driven culture. In the constant rat race of Western culture, the Sabbath provides an opportunity to rest and be still amidst the chaos, restoring us to our true humanity.   

Taking this day of rest on the Camino helped me to lean into the rhythms of grace and rest that, as a Christian, I am called to participate in. For me, it was learning that rest here was not failure, but a necessary part of the journey. The most helpful thing I could do was pause, not push on.  

We crave rhythm, ritual and simplicity 

On a multi-day hike, you quickly settle into a rhythm. Wake up. Coffee. Walk. Coffee. Walk. Lunch. Walk. Coca-Cola. Check-in. Shower. Aperol Spritz. Read. Dinner. Pack your bag for tomorrow. Sleep. Repeat. The cadence of the days, though physically demanding, was strangely comforting. There was something profoundly grounding about knowing what came next, and being free from the decision fatigue that so often clutters everyday life. 

I carried only the simple things I needed on my back. Halfway through, I even threw away some of my makeup to save weight, and I didn’t miss it. Life stripped back to the essentials felt freeing. The Camino quietly reoriented me toward simplicity, not as deprivation, but as a kind of clarity. 

In this pared-back way of living, rituals emerged, ordinary acts repeated with intention. I am also aware of what a privilege this was, comparing my life of plenty back home to the simplicity of being on a trail. Simplicity isn’t a choice if it is the only option. Tying my shoes each morning, sipping coffee at sunrise, washing my socks in a hostel sink, these small things became anchors. Rituals have a way of transforming what is ordinary into something sacred. These small daily practices gave my life stability that we all long for. We all have things that are sacred to us–and I think deep down–we all long for what is sacred.  

Throughout Scripture, we see how God brings order out of chaos. The decision fatigue I face each day is a reminder of a great blessing, but also a deep distraction. The Camino reminded me that simplicity and ritual don’t shrink life–they give it shape. 

There is a spiritual longing in all of us  

There was one thing that shocked me most about doing this pilgrimage. The Camino de Santiago is one of the world’s oldest religious pilgrimages, culminating in a mass at the Cathedral in Santiago de Compostela. But whilst walking the Camino, I did not meet a single Christian. No one had a faith. Everyone I met was walking with those questions, or the adventure and the journey along the way. But no one with a deep faith or hope in God. 

As I walked, I listened to Lamorna Ash’s latest book, Don’t Forget We’re Here Forever: A New Generation’s Search for Religion. In it, she explores a generation’s turn to Christianity as she follows the lives and stories of those within and without faith. The stories of people who the church had hurt, those who carried brokenness and were longing for peace. Listening to this audiobook was often interrupted by the beautiful encounters I had with other pilgrims along the way.  

These conversations reminded me that, while not everyone has a faith, I believe there is a longing for something bigger than us, in all of us. Whether spoken or not, there was a hunger for transcendence, a desire to be part of a story with direction, with purpose. The rhythm and ritual of completing this pilgrimage was a sacred act, something that held deep meaning for everyone walking. The sense of adventure, journey or even telos (Greek for purpose or goal) that we were all walking towards in the end at the Cathedral of Santiago de Compostela, gave our days direction and purpose.  

As I walked the Camino, it was the highlight I didn’t expect. I came into this thinking I would want to be alone. Listening to scripture and praying all day, every day. However, in the end, the best parts were the stories and conversations I had with the people I met along the way.   

So, there it is: the seven things walking the Camino de Santiago taught me. It was, without a doubt, the most physically and emotionally demanding thing I have ever done. And yet, it taught me so much.  

We all carry questions. We all long for meaning. We all crave rhythm, connection, and the sacred in the midst of the ordinary. Although I returned with my mind still pondering questions left unanswered or new things that had come to the surface, I was reminded that life is found in the small steps we take and the people we take them with—echoes of the One who made us for relationship, for purpose, and pilgrimage. 

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