Chapter 12

The Battle in the Mind

Fighting for the life you’ve been promised

I want to be honest with you about something at the start of this chapter, because if I’m not, the rest of it won’t land properly.

This book that you are holding in your hands almost did not exist.

I don’t mean that in the dramatic, after-dinner-speech sense. I mean it quite literally. There was an eight-month stretch during the writing of Renewed when this manuscript sat untouched on my computer, half-written, and very nearly stayed that way forever. And the reason it nearly stayed that way had almost nothing to do with my schedule, my workload, my circumstances, or any of the other respectable explanations I might have offered if a friend had asked.

The reason it nearly stayed that way is that I was losing a battle in my mind.

Let me tell you the story properly, because I think it is going to sound familiar to a great many of you.

Long before I ever started writing Renewed, I had — and I am not exaggerating in any way — somewhere in the region of forty to fifty book ideas knocking around in my head. Friends will tell you. Some of them, when I mention writing a book, raise their eyebrows ever so slightly and say okay, sure, in that gentle, affectionate tone people reserve for friends they love but no longer entirely believe. They have been hearing me talk about writing a book for years. They have, quite reasonably, stopped expecting it.

But this particular idea would not leave me alone. I would wake up thinking about it. I would be in the middle of a sermon and find myself referencing it. I would be in a coaching conversation with somebody and find the principle of the renewed mind coming up again, in yet another context, with yet another set of fingerprints all over the difficulty the person was trying to escape. And one morning, I got up and I knew. Not in a mystical way. Just in the quiet, clear way that you sometimes know what you are meant to do next.

This one is different. This is the one you have lived. This is the one you have to write.

And so I started. And the first four chapters came out of me with a speed that surprised me — almost as if they had been waiting their turn. The material was deep inside me already. I had been preaching it, teaching it, living it, and watching God do extraordinary things with it in the lives of people I love. The words almost wrote themselves.

I went to sleep that night feeling something close to elation.

And then I woke up the next morning.

You probably know the feeling I am about to describe. I lay there in bed, in the half-light, and a thought arrived in my head with the quiet authority of something I had no reason to question. It said:

What’s the point of this?

And before I had even thrown the covers back, a second thought arrived behind it.

Who’s actually going to read it?

And then a third.

What do you know? You’ve never written a book before. Who are you to write this book?

If you have ever started anything that mattered to you, you know exactly the family of voices I’m describing. They are practised. They are confident. They speak with the intimacy of an old friend. And what they were doing, that morning, was the thing they had been doing successfully for years — they were quietly trying to put out a fire before it had really got going.

I would like to tell you that I rebuked them, opened my laptop, and pressed on regardless.

I didn’t.

I wrote another three chapters over the following weeks, against the steady internal weather of those voices. And then, somewhere along the line, the weather won. The manuscript was set aside just for a few days, the way these things always are. The few days became a week. The week became a month. The month became eight months. The file sat there on my computer, exactly where I had left it, while life moved on, while conversations happened, while people asked the kinds of questions only this material could answer, while I quietly avoided the truth that the book I was meant to write was sitting half-finished and waiting for me to come back.

What got me back to it, in the end, was not a sudden moment of inspiration. It was a series of small, ordinary nudges — a question from someone I was mentoring, a particular passage that wouldn’t leave me alone, a moment of unease I couldn’t shake. And one day I sat down at the computer and said out loud — out loud, in an empty room — no matter how I feel, no matter what’s going on, no matter what the voices say, I am going to finish this book.

And here we are.

I am telling you this not as a confession, exactly. I am telling you because almost everything we have built in the previous ten chapters of this book — the new mindset, the new identity, the renewed thinking, the chrysalis, the wings — is going to be tested, almost from the moment you put this book down, by precisely the kind of battle I just described.

I would be doing you a disservice if I sent you off into your renewed life without telling you that.

There is going to be a fight.

And the fight, almost without exception, happens in the mind.

*

The battlefield Paul named

The Apostle Paul, who knew about as much about spiritual warfare as anyone who has ever lived, did not locate the great Christian battle on a physical battlefield. He didn’t locate it in some abstract heavenly realm distant from your daily experience. He located it precisely where most of us would rather not look.

He located it in our heads.

“The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds. We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ” (2 Corinthians 10:4–5).

We’ve sat with this verse already, back in Chapter Seven, when we were talking about strongholds. But notice what Paul actually names as the targets of spiritual warfare. Arguments. Pretensions. Thoughts. Not demons swooping at you across the kitchen at half past three in the morning. Not external enemies you can see and identify and fight. Thoughts. The ones generated inside the architecture of your own mind. The ones that arrive sounding so much like you that you assume they are you.

This is, for many believers, a quietly revolutionary idea. We were raised, many of us, on a particular picture of spiritual warfare. The picture usually involved either dramatic external manifestations or a sort of vague cosmic struggle going on somewhere over our heads. And those dimensions are real — I am not, for a moment, suggesting otherwise. But the primary battlefield, in Paul’s theology and in lived Christian experience, is far more intimate and far more personal than that.

The battlefield is the mind.

It is where the enemy of your soul has always preferred to fight. Because if he can capture your thinking, he doesn’t need to lift a finger against your circumstances. Your own renewed life, if your thinking is still under occupation, will quietly sabotage itself. You will undo on Thursday what God did in you on Sunday. You will write four chapters one day and lie under the covers the next, agreeing with a voice you should be arguing back at.

This is why this chapter exists.

Because everything you have learned in this book up to now is contestable. The enemy doesn’t have to undo it. He just has to talk you out of it, one ordinary morning at a time.

*

The strange law of homeostasis

I want to introduce a word here that comes from the world of biology and medicine, because once you understand it, half the spiritual warfare you have been experiencing for years will suddenly make sense.

The word is homeostasis. It comes from two Greek words — homoios, meaning similar or the same, and stasis, meaning standing still or staying. Together, homeostasis describes the body’s quiet, relentless effort to keep things the same.

Your body is doing this right now without your knowing it. If you walk into a cold room, your blood vessels constrict to keep your core warm. If you walk into a hot room, you start to sweat to bring the temperature down. If your blood sugar drops, hormones quietly kick in to bring it back up. If you stop eating for an afternoon, your metabolism adjusts to conserve energy. The body is constantly, unconsciously, intelligently working to maintain a steady internal state. That is homeostasis. And it is one of the most beautiful design features in the human being.

But here is the catch.

The same principle operates in the mind.

Your brain has a homeostatic set point. It is the inner state it has come to recognise as normal — even when that normal is dysfunctional, painful, or actively destructive. And whenever you try to lift yourself out of that set point — by reading a book like this one, by adopting a new way of thinking, by stepping into a vision that requires you to be more than you have been — your brain will quietly, automatically, expertly try to pull you back.

Not because it hates you. Because it is built to conserve energy by maintaining what’s already there.

This is why diets fail.

This is why people who win the lottery, study after study has shown, return to roughly their previous level of happiness within about a year. The external circumstances changed dramatically; the internal set point did not.

This is why an addict’s body fights for the substance for weeks, sometimes months, after the mind has decided it doesn’t want it any more.

This is why you can have a brilliant idea on a Monday, write the entire plan out on a sheet of A4, and wake up on Tuesday in a low fog of what was I even thinking?

It is not always — though it can be — the work of a personal enemy. Sometimes it is simply the architecture of your own homeostatic system, pulling you back to a baseline that may have been killing you slowly but at least felt familiar.

The renewed mind is, in this sense, a deliberate, sustained, prayerful defiance of homeostasis. You are refusing to return to the set point. You are insisting that a new normal can be built. And both the Bible and the brain, in their different languages, agree that this is hard — and that it is possible.

Genesis 3 tells us, in the curse after the fall, by the sweat of your brow you will eat your food until you return to the ground (Genesis 3:19). Notice what that verse is saying. Life on this side of Eden does not simply giveitself to us. Bread comes by sweat. Provision comes by labour. Growth comes by effort. The doors of prosperity and ministry and fruitfulness and family blessing do not all swing open of their own accord while we sit quietly on the sofa.

We have to fight for the life we have been promised.

And the first battle, the most strategic battle, the battle from which all other battles either rise or fall, is the battle in the mind.

*

Four enemies you’ll need to recognise

The voices that arrived in my bedroom the morning after I wrote those first four chapters were not random. They never are. The internal enemies of the renewed mind tend to dress themselves up in four particular costumes, and you will save yourself enormous amounts of grief if you can learn to recognise them quickly.

The first is fear.

Fear is, in many ways, the foundational opposing voice. It dresses itself up convincingly. It often sounds like wisdom. It will tell you that you are simply being realistic, cautious, responsible. It is, in the moments when you are at the edge of doing something genuinely new, the voice that lists everything that could go wrong, and presents the list as if it were the case for the defence. What if this doesn’t work? What if you fail publicly? What if they laugh? What if you make a fool of yourself? Fear specialises in painting catastrophic futures that have not yet happened and treating them as inevitable.

The Bible takes fear seriously. Some form of the command do not be afraid appears again and again across Scripture — dozens of times, and well over a hundred if you include all its variations and the wider calls not to fear. (You may have heard it said that the phrase occurs exactly three hundred and sixty-five times, one for every day of the year. It is a lovely thought, but it is not actually accurate; the real figure is lower. The point, happily, stands either way.) There is more than enough of it to suggest that God knew exactly how much of our daily lives is governed by this single emotion. And the antidote God offers is not bravery in the sense of pretending the fear isn’t there. The antidote is truth louder than the fear. I sought the Lord, and he answered me; he delivered me from all my fears (Psalm 34:4).

The second is doubt.

If fear is loud, doubt is quiet. Doubt does not shout. Doubt erodes. It rarely tells you that what you are doing is impossible. It simply asks, again and again, in the most reasonable tone of voice, whether you are really sure.Are you sure about this? Are you really sure God said that? Are you sure that’s still your calling? Are you sure you’ve heard him correctly? Doubt’s strength is that it can wear you down without ever appearing to attack you. It is the voice that whispered to Eve in the garden — did God really say? — and it has been working the same job, in the same tone, ever since.

The antidote to doubt is not certainty about every detail of your life. The antidote is settled trust in the One you are walking with, even when individual details remain unclear. Faith, properly defined, is not the absence of unanswered questions. It is the presence of a settled confidence that the One who is leading you knows what He is doing.

The third is pride.

This one is the most insidious, because it never announces itself as pride. Pride almost always shows up in a costume — often a religious one. Pride is the voice that tells you the renewal you have been working on for six months is probably enough now. Pride is the voice that prefers to defend old patterns rather than admit they were wrong. Pride is the voice that compares your spiritual journey to other people’s and discovers, with quiet satisfaction, that yours is going rather well. Pride is also, paradoxically, the voice that prefers to wallow in self-pity rather than receive help, because self-pity is, at its heart, a form of pride in reverse. No one understands me. Nobody else has been through what I’ve been through. I’m a special case.

The antidote to pride is humility. Not the false, performative humility that is really just pride wearing a different jacket. The real thing. Clothe yourselves with humility toward one another, because God opposes the proud but shows favour to the humble (1 Peter 5:5). Notice the language — God opposes. There is no enemy on earth more formidable than that.

The fourth is comparison.

Comparison is the modern epidemic, and the renewed mind will have to fight it almost daily. We live in the most comparison-saturated age in human history. Every device you own is delivering, on demand, a curated highlight reel of other people’s marriages, ministries, businesses, holidays, bodies, theology, parenting, and politics. And comparison whispers — always — that you are behind. That they are doing it better. That you should have had this by now. That if your life were really going well, it would look more like theirs.

Comparison is, theologically speaking, almost always a lie. Because it lifts a curated fragment of someone else’s life and weighs it against the unedited whole of yours. The comparison was rigged before it began. Each one should test their own actions. Then they can take pride in themselves alone, without comparing themselves to someone else (Galatians 6:4).

These four enemies will not all attack you at once. They take turns. One season it will be fear; the next, doubt; the next, comparison. Pride tends to come in last, when things are going well and you are most off-guard. They are the standing opposition. And the renewed mind is, in part, the mind that has learned to recognise them by name — because once you can name a voice, you have already loosened its grip on you.

*

The weapons we are given

Now here is the good news. The Bible does not leave us to fight this battle empty-handed.

When Paul talks about the weapons of our warfare being mighty through God to the pulling down of strongholds, he doesn’t leave the weapons vague. The Bible names them. They are accessible. They are practical. They are available to every believer, regardless of background, age, education, or how spiritually impressive you feel.

Four of them, in particular, deserve our attention.

The first is the Word.

When Jesus is led into the wilderness in Matthew 4 to be tempted — to face, in concentrated form, exactly the kinds of mental and spiritual attacks we have been discussing — He does not respond with personal willpower. He does not respond with positive thinking. He does not even respond, primarily, with prayer. He responds, three times in a row, with Scripture. It is written. It is written. It is written. The Word of God is the sword of the Spirit (Ephesians 6:17), and it is the only piece of the armour of God that is described as offensive rather than defensive. Everything else in that famous passage about armour — belt, breastplate, shield, helmet, footwear — protects. The Word attacks. The Word is what we throw back at the voices.

This is part of why the chapter we spent on meditation matters so much. You cannot reach for a sword you have not first hidden in your belt. You cannot quote the verse that delivers you at three in the morning if you have not put it inside you when the sun was still up. The Word is the weapon. But it has to be in you before you can use it.

The second is prayer.

If the Word is the sword we wield, prayer is the way we stay in contact with the One whose battle this actually is. It is, in some ways, the most obvious weapon of all — and for that very reason the one we most often neglect. When the voices are loudest, the instinct is to withdraw, to go quiet, to try to think our own way out. Prayer does the opposite. It drags the battle out of the privacy of our own heads and into the presence of God.

Paul tells us plainly where to take our anxious, embattled thoughts. Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus (Philippians 4:6–7). Notice that last word — minds. Paul promises that prayer sets a guard over precisely the place where the battle is being fought. We do not pray because it is religious. We pray because it works — because it moves the weight we are carrying off our own shoulders and onto the only shoulders strong enough to bear it.

Jesus Himself, in His sharpest hour of spiritual battle in the garden of Gethsemane, did not strategise. He prayed. Not my will, but yours, be done (Luke 22:42). If the Son of God met His darkest moment on His knees, we should not imagine we will win ours standing up, relying on our own cleverness. When the voices come, the first move is not to argue and not to panic. The first move is to pray.

The third is worship.

Worship is one of the most underrated spiritual weapons in the modern church. We tend to think of worship as a Sunday-morning activity — singing songs together in a room, perhaps with the lights low and the sound system loud. And worship is that, beautifully. But worship is also, in the older biblical sense, the deliberate act of declaring the worth of God in the face of everything that would tell you otherwise. It is one of the most spiritually powerful things a human being can do.

When King Jehoshaphat in 2 Chronicles 20 found himself surrounded by armies he could not hope to defeat, what did he do? He sent the worshippers out in front of the soldiers. Give thanks to the Lord, for his love endures forever (verse 21). And it was as they began to sing and praise that the Lord set ambushes against the enemy. Worship was the weapon. Worship is what shifts the atmosphere in your inner life faster than almost anything else I know. Worship reminds you who God is, and in doing so, reminds you of everything the voices have been trying to make you forget.

When you don’t know what else to do, worship. Put a song on. Sing it out loud, even badly. Speak the worth of God into a room that has been telling you something else. The voices have a difficult time competing with a heart actively engaged in worship.

The fourth is community.

I want to be especially honest about this one, because it is the weapon most modern Western Christians have unilaterally laid down — and I think it is one of the reasons so many of us are losing battles we should be winning.

You are not meant to fight this alone. The whole architecture of the New Testament assumes that the Christian life is a team sport. Carry each other’s burdens, and in this way you will fulfil the law of Christ (Galatians 6:2). Therefore confess your sins to each other and pray for each other so that you may be healed (James 5:16). Let us consider how we may spur one another on toward love and good deeds, not giving up meeting together, as some are in the habit of doing (Hebrews 10:24–25).

The enemy’s strategy, since the very beginning, has been isolation. He picked Eve off when she was alone in the garden. He attacks every believer at the precise moment we are least surrounded. And the antidote, the simple and almost embarrassing antidote, is not being alone. Having two or three people who know what you are walking through. Having a small church community where you are actually known, not just attended. Having a friend you can text at half past nine on a Tuesday evening and say the voices are loud tonight, pray for me.

I wish I could tell you that a great crowd of people rallied around me and carried this book over the line. The honest truth is quieter than that. It was really just one or two people who, every so often, would gently ask how the writing was going — and that was enough to keep the embers from going out completely. That is rather the point. You do not need a stadium. You need a few people who know what you are walking through, and who will not let you quietly disappear. Even one or two faithful voices, asking the right question at the right moment, can do more spiritual warfare on your behalf than they will ever realise.

If you take nothing else from this chapter, take this. Find your people, and let them in. No renewed mind has ever stood for long without community standing around it.

*

Walking into the fight

Let me bring this down to where you actually live, as I have tried to do in every chapter.

You are going to wake up tomorrow morning. The renewed thinking you started developing while reading this book is going to be tested before you finish your first cup of coffee. The voices will not wait politely. They will arrive — possibly with a new variation you haven’t heard before. That sounded great in the book. It won’t work in your life. That kind of thing.

When that happens, three small practices will make an enormous difference.

First, recognise the voice. Don’t engage with it on its own terms. Don’t argue with it as if it were neutral information. Identify it. That’s fear talking. That’s doubt. That’s comparison. The moment you name the voice, you have separated it from yourself. It is no longer you. It is a voice in you that you can now speak to.

Second, reach for the weapon. Have a verse ready. Have a song you can put on. Have a phone number you can call. The fight is rarely won by the people who have the best intentions; it is won by the people who have the weapons within reach. Decide, this week, what your three or four go-to weapons are. Write them down. Put them somewhere you will see them.

Third, do the thing anyway. The voices will not always go quiet before you obey. Often they will only quieten after. You write the chapter while the voice is telling you nobody will read it. You make the phone call while the voice is telling you they don’t want to hear from you. You take the step of faith while the voice is listing every reason it won’t work. The obedience is the weapon.

The battle in the mind is real. It is constant. It is, in a strange way, the proof that you are walking the right path — because nobody attacks a stationary target. You are being attacked because you are moving. You are being resisted because you are threatening. The mind that is about to be renewed is the mind that is about to bring about real change in a real life, and the enemy knows this even if you don’t.

So fight. Fight with the Word in your mouth, prayer on your lips, worship in your spirit, and community at your side. And do not — please, please do not — set this book down in eight months’ time and find that the file is still sitting half-finished on the computer of your life.

You are stronger than the voices.

The God in you is stronger than the resistance against you.

And the renewed life you are reaching for is worth every battle it is going to take to walk into it.

*

Personal reflection

•       Which of the four voices — fear, doubt, pride, comparison — has been the loudest in your life lately? Can you name a specific moment in the last week when it spoke?

•       What is the unfinished thing in your life right now — the equivalent of my book sitting on the computer for eight months — that the voices have been quietly talking you out of?

•       Which of the four weapons — Word, prayer, worship, community — is the most developed in your life? Which is the most neglected?

•       What would it look like, this week, to put one specific verse where you can see it every morning?

•       Is there anyone in your life right now who needs you to be the person gently asking how is that thing going? — the way someone did for me?

Declaration

The battle in my mind is real, but I am not losing it. The God in me is greater than the voices against me. I will fight with the Word, I will fight in prayer, I will fight with worship, and I will not fight alone. I will recognise the voice, I will reach for the weapon, and I will do the thing anyway. The life God has called me to is worth every battle it will take to walk into it — and I am still walking.