Not only in Christ is there the perfect supply of all these necessities, but also that fulness _becomes ours_ on the simple condition of desiring it. The thirst for the living God in a man who has faith in Christ Jesus, is not a thirst which amounts to pain, or arises from a sense of non-possession. But in this divine region the principle of the giving is this--to desire is to have; to long for is to possess. There is no wide interval between the sense of thirst and the trickling of the stream over the parched lip; but ever it is flowing, flowing past us, and the desire is but the opening of the lips to receive the limpid and life-giving waters. No one ever desired the grace of God, really and truly desired it; but just in proportion as he desired it, he got it--just in proportion as he thirsted, he was satisfied. Therefore we have to preach that grand gospel that faith, simple, conscious longing, turned to Christ, avails to bring down the full and perfect supply.
But some Christian people here may reply, 'Ah! I wish it were so: what was that you were saying at the beginning of your sermon, about men having religious depression, about Christians longing and not possessing?' Well, I have only this to say about that matter. Wherever in a heart that really believes on God in Christ, there is a thirst that amounts to pain, and that has with it a sense of non-possession, that is not because Christ's fulness has become shrunken; that is not because there is a change in God's law, that the measure of the desire is the measure of the reception; but it is only because, for some reason or other that belongs to the man alone, the desire is not deep, genuine, simple, but is troubled and darkened. What we ask, we get. If I am a Christian, however feeble I may be, the feebleness of my faith and the feebleness of my desire may make my supplies of grace feeble; but if I am a Christian, there is no such thing as an earnest longing unsatisfied, no such thing as a thirst accompanied with a pain and sense of want, except in consequence of my own transgression.
And thus there _is_ a longing imperfect in this life, but fully supplied according to the measure of its intensity, a longing after 'the living God'; and that is the state of a Christian man. And O my friend! that is a widely different desire from the other that I have been speaking about. It is blessed thus to say, 'My soul thirsteth for God.' It is blessed to feel the passionate wish for more light, more grace, more peace, more wisdom, more of God. That _is_ joy, that _is_ peace! Is that _your_ experience in this present life?
III. Lastly, there is a perfect longing perfectly satisfied; and that is heaven.
We shall not there be independent, of course, of constant supplies from the great central Fulness, any more than we are here. One may see in one aspect, that just as the Christian life here on earth is in a very true sense a state of never thirsting any more, because we have Christ, and yet in another sense is a state of continual longing and desire--so the Christian and glorified life in heaven, in one view of it, is the removal of all that thirst which marked the condition of man upon earth, and in another is the perfecting of all those aspirations and desires. Thirst, as longing, is eternal; thirst, as aspiration after God, is the glory of heaven; thirst, as desire for more of Him, is the very condition of the celestial world, and the element of all its blessedness.
That future life gives us two elements, an infinite God, and an indefinitely expansible human spirit: an infinite God to fill, and a soul to be filled, the measure and the capacity of which has no limit set to it that we can see. What will be the consequence of the contact of these two? Why this, for the first thing, that always, at every moment of that blessed life, there shall be a perpetual fruition, a perpetual satisfaction, a deep and full fountain filling the whole soul with the refreshment of its waves and the music of its flow. And yet, and yet--though at every moment in heaven we shall be satisfied, filled full of God, full to overflowing in all our powers--yet the very fact that the God who dwells in us, and fills our whole natures with unsullied and perfect blessedness, is an infinite God; and that we in whom the infinite Father dwells, are men with souls that can grow, and can grow for ever--will result in this, that at every moment our capacities will expand; that at every moment, therefore, the desire will grow and spring afresh; that at every moment God will be seen unveiling undreamed-of beauties, and revealing hitherto unknown heights of blessedness before us; and that the sight of that transcendent, unapproached, unapproachable, and yet attracting and transforming glory, will draw us onward as by an impulse from above, and the possession of some portion of it will bear us upward as by a power from within; and so, nearer, nearer, ever nearer to the throne of light, the centre of blessedness, the growing, and glorifying, and greatening souls of the perfectly and increasingly blessed shall 'mount up with wings as eagles.' Heaven _is_ endless longing, accompanied with an endless fruition--a longing which is blessedness, a longing which is life!