THE ESSENCE OF CHRISTIANITY

Christ in You, the Hope of Glory

Introduction: The Question of Convictions

What are your convictions? Do you have any? Not opinions, not preferences, not the things you vaguely agree with on a Sunday morning and then set aside by Monday — but convictions. Deep, settled, unshakeable persuasions that have so gripped your inner life that they now determine the course of everything you do. Convictions are not merely beliefs stored in the mind. They are compelling forces. They are the reason some people stand when everyone around them is falling. They are the reason some men and women have looked persecution in the face, looked the threat of death square in the eye, and did not change.

There is nothing as deadening, nothing as truly sickening, as a Christian without convictions. A person can have all the religious trappings — the vocabulary, the attendance record, the knowledge of doctrine — and yet be utterly without the convictions that make those things mean anything. And when life applies pressure, when the fire comes, when the test is real, that person collapses. Because without convictions, there is nothing to hold the structure up.

A man with a conviction will defeat someone far stronger who has none. Conviction is not about physical force — it is about the will, the stomach, the settled determination that says, I am not going back. You get to a certain point with God, a point of such deep persuasion and such settled certainty, that there is no turning back. That is what makes the difference. That is what makes some of us stick when others walk away.

So where do these convictions come from? They do not come from intellectual study alone, though study plays its part. They come from the renewing of the mind — from the transformative work of the Holy Spirit writing truth so deeply into a person’s spirit that the truth becomes the very fabric of how they think and move and live. The Apostle Paul described this process in his letter to the Romans:

Romans 12:1–2  I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service. And be not conformed to this world: but be transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.

The convictions that God builds in a believer are not the product of conformity to the world’s systems of thought. They come from transformation — from the inside out, from the renewing of the mind by the Spirit of God, until a person begins to operate habitually in the good and acceptable and perfect will of God. This is bigger than brainwashing. Brainwashing works from outside in, imposing a foreign framework on the mind. What God does works from inside out — renewing, transforming, making new.

Part One: “Most Surely Believed Among Us”

The physician Luke, writing his account of the life and ministry of Jesus Christ, opens his Gospel with words that reveal the quality of conviction that animated the early church. This was not a community of people who thought they might possibly be following something real. These were people who had staked their lives on what they knew to be true:

Luke 1:1–4  Forasmuch as many have taken in hand to set forth in order a declaration of those things which are most surely believed among us, even as they delivered them unto us, which from the beginning were eyewitnesses, and ministers of the word; it seemed good to me also, having had perfect understanding of all things from the very first, to write unto thee in order, most excellent Theophilus, that thou mightest know the certainty of those things, wherein thou hast been instructed.

Most surely believed. That phrase carries everything. These were not tentative, half-hearted religious explorers. They had conviction. They had certainty. And it was on the basis of that certainty — the certainty that these things were true, that they had seen them, that they were trustworthy — that they stood in the face of persecution and did not change. Luke was writing to assure Theophilus that what he had received was not rumour or religious fancy. It was certain. It was real. It could be staked on.

This is what God intends for every believer — not a soft, uncertain, vaguely religious faith, but a settled conviction, tested and proven, that becomes the bedrock of an unshakeable life. You must work on your convictions. You must allow the Spirit of God to drive them so deeply into your spirit that they are no longer just travelling thoughts passing through your mind, but certainties that have become part of who you are.

Part Two: The Gnostic Challenge and the Colossian Answer

It was precisely because convictions about Jesus Christ matter so enormously that the Apostle Paul wrote with such urgency to the church at Colossae. In that city, a powerful and sophisticated religious movement — what would later become known as Gnosticism — had gained significant influence, even penetrating the church itself. The Gnostics were not uneducated street agitators. They were schooled, articulate, and intellectually formidable. And they carried a message that struck at the very heart of the gospel.

They taught that Jesus Christ was not a real person with a real body. His death, they said, was not physical — it was spiritual. His resurrection was not literal. Do not follow that man from Nazareth as a real, historical figure. He was merely a symbol, a spiritual idea. They came with esoteric language, claiming to possess a higher knowledge that ordinary believers could not access, a secret wisdom reserved for the initiated few. The result was that the people of God no longer knew what the truth was. Confusion replaced conviction. Uncertainty replaced certainty. And they began to follow voices that were leading them away from Christ.

These voices did not come from outside the church. They arose from within it — a sobering reminder that the enemy’s most effective strategy has never been the frontal assault but the infiltration. An outsider cannot divide a church. It takes someone who knows the language, who has been present in the meetings, who can speak the vocabulary of faith, to cause real damage from within. The devil knows this, and he has always worked this way.

The probable father of this Gnostic movement can be traced back to the account in the book of Acts. When Peter and John came to Samaria to lay hands on the new believers that they might receive the Holy Ghost, a certain man named Simon was present. Simon had formerly been a sorcerer — famous throughout the region, feared and revered. He had given his heart to Christ along with the others. But something in him remained unclean. When he saw the power of God falling on people as hands were laid on them, something in the old nature stirred. He wanted that power — not for the glory of God, but for the maintenance of his own status, his own reputation, his own influence. He offered Peter money.

Peter’s response was unsparing: “Thy money perish with thee, because thou hast thought that the gift of God may be purchased with money… I perceive that thou art in the gall of bitterness, and in the bond of iniquity.” Here was a man in the church, a man who had believed — and yet his mind was unclean. His desire for the things of God was twisted by self-interest. And it is believed that this is the man whose unresolved hunger for power eventually gave birth to the Gnostic movement that would trouble the churches for generations.

Paul’s answer to the Gnostics was not a philosophical counter-argument. It was a declaration of who Jesus Christ is and what He has done. Jesus is not a symbol or a spiritual idea. He is the real Son of God who actually died, was buried, and was raised from the dead. And in Him — not in esoteric wisdom, not in secret knowledge, not in any other system — the fullness of God dwells. Paul declared: “in him dwelleth all the fulness of the Godhead bodily.” And therefore: “ye are complete in him.” You do not need to seek elsewhere. You are complete in Christ.

Part Three: Christ in You — The Heart of the Matter

Having laid out the Colossian context, Paul then arrives at the beating centre of the entire message. This is the essence of Christianity — not a set of doctrines to be mastered, not a moral code to be followed, not a religious institution to be maintained, but a mystery hidden for ages and now revealed:

Colossians 1:26–27  Even the mystery which hath been hid from ages and from generations, but now is made manifest to his saints: to whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory.

Christ in you. These three words are the summary of everything. Christianity did not come to pass religious knowledge to you. It did not come merely to give you a better understanding of spirituality or to improve your moral performance. Christianity is Christ — the living Son of God — revealed in you. Taking up His abode in you. Talking through you. Living in you. He and you becoming one divine creation, inseparable. This is what God seeks to do in every person who opens their heart to Him.

When Christ is in you, you do not need to seek Him elsewhere. You do not need to go on a pilgrimage to find Him, or wait for a special atmosphere before you can reach Him. He is in you. He walks in you. He talks through you. You are complete in Him who is the head of all principality and power. And the hope of glory — every future promise, every dimension of the eternal inheritance — is secured by this one reality: Christ in you.

Man is a spirit. What God does in a life, He works from the spirit. He works from the inside out. Many people try to work from the outside in — to modify behaviour, to accumulate religious knowledge, to perform the right rituals — and they find that it produces nothing of lasting worth. You may amass information. You may master knowledge. But none of that will make your life an expression of God. Only Christ revealed on the inside will do that. That is why there are so many Christians who perpetually need to be propped up, perpetually requiring the prayers and reassurances of others, never arriving at a settled, mature experience of God for themselves. They have gathered information about God, but they have not encountered Christ within.

Part Four: By Revelation, Not by Man

The Apostle Paul knew from personal experience the difference between receiving information about God and receiving the revelation of God. He had been the finest student of the law in his generation — educated, zealous, impeccably formed in the traditions of his fathers. And yet, for all of that, he had never known God. He had knowledge about God. He did not have the revelation of Christ within. Writing to the Galatians, who were in danger of trading the living reality of Christ for a return to the law, Paul drew a sharp and decisive line:

Galatians 1:11–16  But I certify you, brethren, that the gospel which was preached of me is not after man. For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ. For ye have heard of my conversation in time past in the Jews’ religion, how that beyond measure I persecuted the church of God, and wasted it: and profited in the Jews’ religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers. But when it pleased God, who separated me from my mother’s womb, and called me by his grace, to reveal his Son in me, that I might preach him among the heathen; immediately I conferred not with flesh and blood.

Paul was not saying that he rejected instruction or that the Holy Spirit does not teach through the word. He was drawing a distinction between two entirely different kinds of knowing. There is knowledge that operates in the mental realm — knowledge that is received through the senses, processed by the intellect, stored in the memory, and available for use whenever the mind reaches for it. This kind of knowledge is real and has its place. But the human spirit can only be taught by the Holy Spirit. No amount of information delivered from one human mind to another can teach your spirit the realities of God. A message from the head goes to the head; but the message that comes from the heart of God, carried by the Spirit of God, goes to the heart.

Revelation is the impartation of divine knowledge without any material medium. When the Spirit of God opens the word to your spirit, something happens that no classroom can produce. Truth that you have heard many times suddenly becomes alive — not just something you agree with intellectually, but something that has become part of you, that you know with a certainty that transcends argument. This is how the convictions that hold a man steady in the fire are formed. Not by hearing the word with the ears alone, but by the Spirit of God teaching the spirit of man from within.

The Galatians had been influenced by preachers of the law who were taught their message from the outside in — well-packaged, well-delivered, but carrying no life, because the law was a veil on the heart, and God could not be truly revealed through it. Paul came with something entirely different: not a religion delivered to him by men, but a revelation of Jesus Christ given to him by God. And that revelation changed everything.

Has Christ been revealed in you? Not just explained to you, not just described to you by someone else — but truly revealed in you? This is the question that lies at the centre of this entire message. When it pleased God to reveal His Son in Paul, the result was not merely a changed theology. It was a transformed life. And that transformation overflowed into the nations. When Christ is revealed in you, you cannot help but carry His presence into every space you occupy.

Part Five: Religion or the Real Thing

There is a version of Christianity that never gets beyond religion. It attends the meetings, uses the right language, collects the right prayers, and goes through all the right motions — but never arrives at the reality of Christ within. Such Christianity is characterised by perpetual dependence on the prayers and ministrations of others, by a need to be constantly encouraged and propped up, by an inability to stand in the hour of real testing. This is baby Christianity — and God’s intention is that we do not remain there.

There will come a time — and God arranges it — when the prayers of others will not reach you in the fire. There will be a moment in which no amount of counsel and encouragement will be sufficient. It will be between you and God. And in that moment, everything will depend on whether Christ is truly in you — whether you have the personal, living, settled reality of Christ within, or only a borrowed faith that belongs to someone else. The Apostle James did not say, “pray that God will protect you from the devil.” He said:

James 4:7  Submit yourselves therefore to God. Resist the devil, and he will flee from you.

Resist. You. Not a prayer that someone else prays on your behalf. You, standing in your identity as a child of God, applying the resistance of faith. And the devil is programmed — by his Creator — to flee. Not to fight harder. Not to counter-attack. To flee. Every single time. The resistance does not have to be mighty and spectacular. It does not have to be strong in the natural sense. It simply has to be faith. A soft touch of resistance, grounded in who you are in Christ, and he will have to go. He cannot not flee. That is how the kingdom works.

But this kind of standing — this quality of resistance — is only possible when Christ is truly in you. It is not available to someone living on borrowed faith, relying on the prayers of others as a substitute for their own living relationship with God. Real Christianity equips you from the inside. It gives you what you need to stand in the fire, to resist the enemy, to be complete in Christ without needing to run to someone else every time the pressure comes.

Part Six: The Presence of Christ — What Real Christianity Looks Like

There is a testimony that illustrates this reality more powerfully than any argument. When the Apostle John had spent years in the company of Jesus, when he had observed Him closely, heard Him speak, watched how He moved, seen how He engaged with people, he arrived at a description that has echoed through the centuries:

John 1:4  In him was life; and the life was the light of men.

In him was life. Not information about life. Not a religious system that pointed toward life. Life itself. And that life was the light of men. It illuminated everything around it. When Christ is truly in a person, it is not primarily something that person says that marks them — it is the presence they carry. There is something about a man or a woman in whom Christ has truly been revealed that is immediately recognisable. Not because they have mastered more scripture or attended more meetings, but because the living Christ is in them, and He cannot be so hidden that He fails to show.

This is real Christianity. Not religion on rampage — loud, busy, and ultimately empty. Not a performance of devotion designed to impress. Not a collection of prayers said on your behalf by specialists while you continue to live however you please. But Christ — the living, present, indwelling Son of God — revealed in you, walking in you, talking through you, manifesting His life in every dimension of your existence.

The Holy Spirit is the agent of this revelation. He has not come merely as an influence that makes you preach better, or a power that enables you to accomplish impressive things. He is more — far more — than that. He has come to help you know God. To arrange the circumstances of your life in ways that bring you deeper into that knowing. To help you serve God from a place of genuine relationship rather than religious duty. He is not, first and foremost, a power source. He is a person. And what He seeks with you is not a transaction but a relationship. The power is real and it is available — but it flows from the relationship, not the other way around.

Conclusion: Go for the Real Thing

This is what is on offer. Not a refined version of religion. Not a better-managed version of your natural life with a Christian label attached. Not a faith that depends on someone else’s prayers to keep it alive. What God is offering is Christ in you — the hope of glory. Christ taking up His dwelling in your spirit. Christ becoming so real within you that His presence flows through you into the world around you. People will see Him in you — not because you tell them about Him, but because He is there.

It is very easy to get off the track. It is very easy to settle for something that looks like Christianity but has lost the essential thing. Go for the real thing. Do not settle for less. If you have received the Holy Spirit, find out who He is. Get to know Him from the word. He is more than an influence. He is more than a power available on demand. He is the Spirit of the living God, come to reveal Christ in you and to bring you into the deep, settled, unshakeable knowing of God that is the foundation of all genuine Christian life.

Work on your convictions. Allow the Spirit to drive them so deep that they are no longer merely things you believe, but things you are. Get to the point where there is no going back. And do not rest until Christ is not just a doctrine you hold but a presence you carry — because He is in you, the hope of glory.