What Is a Christian?

Three Essential Questions

This evening, three questions. And I hope, trust by the grace of the Lord Jesus to be able to answer those questions and in so doing may be enabled by Him to point some to a clearer understanding of what the Lord Jesus would do within us.

I have three questions. I believe they're all important. The first is, what is a Christian? What is a Christian? What constitutes a Christian? What marks him out? How can we know if we really are Christians?

And then secondly, I would like to ask the question, how can a holy God produce Christians? How can God Almighty lay hold of us, we who are so sinful by nature, so rebellious by nature, so utterly self-centred by nature? How can God lay hold of us? How can He produce Christians?

And lastly, what responsibility have I in becoming a Christian?

The Definition of a Christian

The Lord Jesus and Nicodemus

Firstly, what is a Christian? In John chapter three, we find that the Lord Jesus speaks to the leading teacher and scholar of His day. A man who was renowned for his piety and for his knowledge of scriptural things, Nicodemus. And Nicodemus, just because he was so well known, because of the position that he held in the nation, because of his name and his reputation, he came to the Lord Jesus at night, and he asked the Lord Jesus something about Himself.

And the Lord Jesus, as you, I think, will know from the story in John chapter three, went straight to the heart of the matter. It is one of the loveliest things about the Lord Jesus that He never ever wastes words. I'm afraid many of us preachers, we waste words. But one of the most beautiful things about the Lord Jesus is that He gets to the point immediately, gently, firmly, decisively. He always comes right down to the need of whoever it is.

Sometimes people try to deceive the Lord Jesus. Like the woman at the well of Samaria. She tried to make out that she knew an awful lot about spiritual things. She tried to get draw Him out along the line of argument about the background of her people and the Jewish people. But He wouldn't have it. And with one question and her answer and His reply, He got right down to the root of her problem. And she was shattered in an instant. And from that point she taught reality; she taught the truth. And He was able to meet her at the point of her need. In the same way the Lord Jesus, with every single instance in the New Testament—and we thank God ever since, in every succeeding generation and century, whenever the Lord Jesus has started to lay His finger or His hand upon a human being, He never wastes words. But slowly and irrevocably He gets down to the real root need within us.

Sometimes we try to deceive Him, sometimes we put up great arguments. We excuse ourselves; we talk religiously. We try to make out that we're not really so bad as everyone else. But the Lord Jesus, sooner or later with each one of us, gets us right down to rock bottom where we say, Lord, I cannot, Lord, I am unable, Lord, I am a sinner. And there comes a point at which we come to the place where we speak of ourselves as the sinner. And then the Lord meets us.

The Necessity of Spiritual Birth

When Nicodemus came to the Lord Jesus, he, of course was a very pious man. He was a very good man. He wasn't immoral, he wasn't indecent, he wasn't a bad man. He was a man who was known everywhere for his piety and his goodness. And when he came to the Lord Jesus by night, stealthily, secretively, as he came to Him, he began to discuss. He wanted to find a little bit more out, a little bit more about the background of the Lord Jesus. Who is this man? He obviously is sent of God. Nicodemus was far too honest and sincere a man to be able, like so many of the religious leaders of his day, to evade the issue and wipe the Lord Jesus off as some fanatic amongst the people. He realised that the Lord Jesus had got something. He was a marked man. He was singular, unique.

The Lord Jesus never wasted any words talking about His background or where He came from or anything else with Nicodemus. He went straight to the point, and He said to Nicodemus, "Truly, verily, verily," or we would say today, "The thing is this, Nicodemus, except a man be born anew, he cannot see the kingdom of God."

I think Nicodemus was shattered. I don't think he expected anything quite like that. Yes, a discussion, a theological discussion. A discussion about the history of God's people. A definition of the mission of the Lord Jesus. Yes, but not to be told, "Nicodemus, Nicodemus, it doesn't matter who it is or what you are. Unless a human being, every human being is born anew, whoever they are, whatever they are, they cannot see the kingdom of God." That was Nicodemus' problem. That was his need. He may not have known it, but that was his greatest need.

What is a Christian? A Christian is someone who is born of God, spiritually begotten of God. That is a Christian. Nothing more and nothing less than that.

The Testimony of Scripture

The whole New Testament bears that out. It is one of the greatest tragedies of our day that with all our education and our knowledge and our advance and progress, there are very few people who could define what a Christian is. If you and I were to go down to the river this evening and were to speak to quite a few people, we should have a variety of answers to our question: what do you think is a Christian? I doubt very much if we would find one in perhaps a hundred who could tell us that according to the word of God, a Christian is someone who has been born of God.

And yet the Lord Jesus told us that this was that which constituted a Christian. Now you can have a lot of Christian things, you can have a lot of Christian additions without having the one necessary thing, the one vital thing that constitutes a man or a woman a Christian. There are multitudes of people who say their prayers, who read their Bible, who go to church and many other things. They believe that in so doing they are Christians. But the word of God condemns such, not necessarily the motive of such. For the motive may be very good and sincere, but it condemns the idea that things such as that constitute a man or a woman a Christian.

What a Christian Is Not

What then can we say is a Christian? It would be easier if we were to tell ourselves quite plainly and to make clear to ourselves what a Christian is not. Sometimes the easiest way of getting to something, a clear understanding of the matter, is to clear the ground of all the rubbish.

Well, we can say two or three things. We can say first of all that a Christian is not someone who is born in a so-called Christian country. That is quite clear. Many people say that they're Christians because they're born in England.

A Christian is not someone who's born in a so-called Christian country. It is not something national. It is not something to do with natural birth. There are some people, of course, who believe that a Christian is someone who's born in a Christian family. Your father and your mother were Christians. They were two Christians. And because they were Christians, you are a Christian. But nowhere in the Bible does it even suggest the possibility of naturally transmitting our salvation to our children. You are not saved by virtue of having Christian parents. The Lord Jesus said that we must be born again, born of God if we would be Christians.

Then again, we can say some other things about what a Christian is not. We can, for instance, dismiss the idea immediately as so illogical that a person who is educated is a Christian. I don't think we need to stay with that for a moment. Or for that matter, do we need to stay very long with another idea which is much more deeply rooted. And that is that if a person is a good person, it doesn't matter what else. If they are a good person, then they are a Christian.

But that is just where many make their greatest mistake. They make their greatest mistake on that very point. The Lord Jesus never said that good people were Christians, and bad people were non-Christians. He never said that. Indeed, again and again He said that He had come into this world not to call the righteous to repentance, but the sinner.

The Inadequacy of External Religion

Nor is it being religious. If we think that by rites or ceremonies or by many other means we can be constituted Christians, we stand condemned by the word of our Lord Jesus Himself. Nothing without can possibly do anything within. You must have something within to make you a Christian. Becoming a Christian, being a Christian, is wholly at the beginning, something within you, within. And it doesn't matter whether I've been baptised or christened or confirmed, or whether I take the Lord's table or whether I belong to a church or a chapel. Those things in themselves cannot do something inside of me.

The Nature of Spiritual Birth

What does it mean to be born anew? It means simply that you're born of God just as you were born of your parents. You came to this world some little, small bundle of human life. You were a new human being. I belong to my parents, my father and my mother. When I was born of them, I wasn't what I am now. I was just a little something that was taken up in the arms. I came out of my parents. I was produced by my parents. There is a sense in which I can truly say I had nothing to do with it whatsoever. It was outside my realm. It was outside my scope. And yet I came into the world. I can't engineer a birth. I couldn't engineer my birth.

The Lord Jesus said to Nicodemus when he asked this question, "Can I again enter into my mother's womb and be born?" He said, "Of course not. That's not the point. The point is this. Just as physically you were born of your father and your mother, so the same miracle spiritually has got to take place. So that you are born of God." Something inside happens. Something within happens. And you are suddenly produced. A child of God.

Union with God

A child of God! Born of God. Later on, Peter, writing his tremendous letter, says, we have been begotten again unto a living hope. And again in another part of his letter, he says, we have been begotten again not of corruptible seed, but of incorruptible. That means that this birth is eternal.

What is a Christian? A Christian is someone who has been born of God. Let me put it another way. Something of God for the first time has been deposited in you. For the first time, you are linked in an eternal union with God. You, a human being, and God, the almighty God, the eternal God, have been fused together. He that is joined to the Lord is one spirit. A Christian is someone who is joined to God. God is joined to them. They have been born of God. They are children of God. They are now God's family. They are His offspring. They belong to Him for all eternity.

The Etymology and Meaning of "Christian"

What does the name Christian mean? The name Christian came from the little word Christ's ones. Christ's ones. People couldn't describe these people. They looked at them in Antioch. They watched them. They watched their behaviour. They watched their conduct. They listened to their speech. They saw these people changed. We knew them, we lived with them. We've had our dealings with them, but they've completely changed. Yes, they're the same people, and yet they've changed. What can we call them? And in the end they said, we can only describe them in one way. They are of Christ. They are like Christ. They are Christ ones. Christ is in them.

What does it mean to be a Christian? It means that Christ has come to live within us and we are now joined with Christ. That is what it means to be a Christian.

Historical Evidence of Spiritual Birth

Every great new phase in the history of God's people has begun with the recovery of this simple truth. It doesn't matter where you turn in the world and in history, you will discover this simple fact that wherever you have found a man or a woman who has been born of God, they have turned the world upside down in the measure in which they've gone on with the Lord. And that doesn't matter whether you take Wycliffe or whether you take Luther or whether you take the Wesleys, or whether you take George Fox or whether you take Mary Slessor of Calabar, or whether you take David Livingstone or whether you take C.T. Studd, whether you take Hudson Taylor or whoever you take — if you discover a man who's been born of God's spirit and not merely religious, you finally turned the world upside down.

The Divine Method of Producing Christians

How then, if we know what a Christian is, how on earth is it not presumptuous to say that God can live inside of us sinful, failing, frail, weak human beings? Do you mean to tell me that God can actually come and live within me?

How has God found a way with sinful, rebellious humanity? This is the way He has found. He Himself has taken human nature upon Himself and has become one of us, and yet without sin, and has taken into His own body the thing that has wrecked humanity. He allowed the thing that wrecked humanity to wreck Him.

The Lord Jesus said a remarkable thing. He said, "Nicodemus, you know, in our history, there was a time when the people sinned. And Moses was told to make a brazen serpent. And when he lifted it up, whoever looked at that brazen serpent lived. And whoever did not, died. Nicodemus, even as Moses lifted up the serpent in the wilderness, so must the Son of Man be lifted up."

He meant simply this, that He must Himself become the very thing that has destroyed humanity, and in so doing might be able to release humanity from its grip. He must become the great substitute. He must become the great atonement.

The Doctrine of Substitutionary Atonement

So Paul later said this wonderful thing. He said, "Him who knew no sin, God made to become our sin, that we might become the righteousness of God." It means that God's son Christ became our sin. He became sin. He knew no sin. That was His uniqueness. He became sin in order that we might become the righteousness of God. Do you see an exchange? He became our sin, that we might become His righteousness.

How can God produce a Christian? By Himself, incarnate. By the Word, becoming flesh and dwelling amongst us. By the eternal Word, offering Himself up on the cross for us, as us, in our place.

This is the basis, the eternal foundation for God's dealings with humanity. There is no other foundation. This is the foolishness of the cross. This is the scandal of the cross. This is the stumbling block of the cross. This is the offensiveness of the cross. People would like something very intellectual. People would like to be able to do something. But to accept the offensiveness of the cross is something that hits at our pride. God's way is the cross.

How does God produce a Christian? By being wounded. By being bruised. By stripes. By the chastisement of His people.

You mean to tell me that you can be a Christian a cheap and an easy way when it costs God everything? The thing's a pernicious lie! You and I can only become Christians by the way God has given us, the way of a crucified Christ.

How does God produce a Christian? By the way of a crucified God. A God who allowed Himself to be nailed by His own creation to a tree which He Himself had created. That is the weakness of God, and that is the way in which He produces Christians.

Human Responsibility in Salvation

To become a Christian is wholly within the sovereignty of God. I can do nothing but cry. When I cry, God hears.

We can only do one thing. We must leave our ideas, our rather glorified ideas and easy ideas, of what makes a Christian. We must come simply to the Lord as one who has by his own or her own attitude made the cross a necessity. We must come, therefore, as contrite sinners to an almighty God. We must make no excuse. We must not try to evade any issue. We must come and we must see that our sin, my sin, nailed Him to the tree. We must see that you and I, we have a personal responsibility in the death of the Lord Jesus Christ, it was for us. For us.

We must come simply, just as we are. And we must, in faith, take Christ crucified as the way of God. The way of God, by which I can reach Him and by which He can reach me. The Lord Jesus said, "I am the way, the truth and the life." That's the way.

No more excuses, no more dilly-dallying, no more evasion. Simply, quietly, definitely take Him as your offering for sin. The one who died in your place. The one who answers to God for you.

The Person of Salvation

God's salvation is not a thing. It is a person. You accept the person and you have the salvation. You can't have the salvation without the person. The person is the salvation. Jesus, the salvation of God.

Take Him, open your heart to Him, receive Him. Surrender to Him. Abandon yourself to Him and you'll become a child of God. For to as many as received Him, to them gave He the authority to become children of God.