John 3:1-6

Let us start with the kingdom of heaven. What does it mean? We get our best definition of it from the Lord's Prayer. There are two petitions side by side:

Thy Kingdom come:

Thy will be done in earth as it is in heaven.

It is characteristic of Jewish style to say things twice, the second way explaining and amplifying the first. Any verse of the Psalms will show us this Jewish habit of what is technically known as parallelism:

The Lord of hosts is with us:

The God of Jacob is our refuge ( Psalms 46:7 ).

For I know my transgressions:

And my sin is ever before me ( Psalms 51:3 ).

He makes me lie down in green pastures:

He leads me beside still waters ( Psalms 23:2 ).

Let us apply that principle to these two petitions in the Lord's Prayer. The second petition amplifies and explains the first; we then arrive at the definition: the kingdom of heaven is a society where God's will is as perfectly done on earth as it is in heaven. To be in the kingdom of heaven is therefore to lead a life in which we have willingly submitted everything to the will of God; it is to have arrived at a stage when we perfectly and completely accept the will of God.

Now let us take sonship. In one sense sonship is a tremendous privilege. To those who believe there is given the power to become sons ( John 1:12 ). But the very essence of sonship is necessarily obedience. "He who has commandments, and keeps them, he it is who loves me" ( John 14:21 ). The essence of sonship is love; and the essence of love is obedience. We cannot with any reality say that we love a person and then do things which hurt and grieve that person's heart. Sonship is a privilege, but a privilege which is entered into only when full obedience is given. So then to be a son of God and to be in the kingdom are one and the same thing. The son of God and the citizen of the kingdom are both people who have completely and willingly accepted the will of God.

Now let us take eternal life. It is far better to speak of eternal life than to speak of everlasting life. The main idea behind eternal life is not simply that of duration. It is quite clear that a life which went on for ever could just as easily be hell as heaven. The idea behind eternal life is the idea of a certain quality of life. What kind? There is only one person who can properly be described by this adjective eternal (aionios, Greek #166 ) and that one person is God. Eternal life is the kind of life that God lives; it is God's life. To enter into eternal life is to enter into possession of that kind of life which is the life of God. It is to be lifted up above merely human, transient things into that joy and peace which belong only to God. Clearly a man can enter into this close fellowship with God only when he renders to him that love, that reverence, that devotion, that obedience which truly bring him into fellowship with him.

Here then we have three great kindred conceptions, entry into the kingdom of heaven, sonship of God and eternal life; and all are dependent on and are the products of perfect obedience to the will of God. It is just here that the idea of being reborn comes in. It is what links all these three conceptions together. It is quite clear that, as we are and in our own strength, we are quite unable to render to God this perfect obedience; it is only when God's grace enters into us and takes possession of us and changes us that we can give to him the reverence and the devotion we ought to give. It is through Jesus Christ that we are reborn; it is when he enters into possession of our hearts and lives that the change comes.

When that happens we are born of water and the Spirit. There are two thoughts there. Water is the symbol of cleansing. When Jesus takes possession of our lives, when we love him with all our heart, the sins of the past are forgiven and forgotten. The Spirit is the symbol of power. When Jesus takes possession of our lives it is not only that the past is forgotten and forgiven; if that were all, we might well proceed to make the same mess of life all over again; but into life there enters a new power which enables us to be what by ourselves we could never be and to do what by ourselves we could never do. Water and the Spirit stand for the cleansing and the strengthening power of Christ, which wipes out the past and gives victory in the future.

Finally, in this passage, John lays down a great law. That which is born of the flesh is flesh and that which is born of the Spirit is spirit. A man by himself is flesh and his power is limited to what the flesh can do. By himself he cannot be other than defeated and frustrated; that we know only too well; it is the universal fact of human experience. But the very essence of the Spirit is power and life which are beyond human power and human life; and when the Spirit takes possession of us, the defeated life of human nature becomes the victorious life of God.

To be born again is to be changed in such a way that it can be described only as rebirth and re-creation. The change comes when we love Jesus and allow him into our hearts. Then we are forgiven for the past and armed by the Spirit for the future; then we can truly accept the will of God. And then we become citizens of the kingdom; then we become sons of God; then we enter into eternal life, which is the very life of God.