Paul does not attempt to describe the future body, but contents himself with pointing out one or two of its characteristics by which it is distinguished from the body we now wear. "It is sown in corruption; it is raised in incorruption: it is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power: it is sown a natural body; it is raised a spiritual body." In this body there is decay, humiliation, weakness, a life that is merely temporary; in the body that is to be decay gives place to incorruptibility, humiliation to glory, weakness to power, animal life to spiritual.
The present body is subject to decay. Not only is it easily injured by accident and often rendered permanently useless, but it is so constituted that all activity wastes it; and this waste needs constant repair. That we may constantly seek this repair, we are endowed with strong appetites, which sometimes overbear everything else in us and both defeat their own ends and hinder the growth of the spirit. The organs by which the waste is repaired themselves wear out, so that by no care or nourishment can a man make out to live as long as a tree. But the very decay of this body makes way for one in which there shall be no waste, no need of physical nourishment, and therefore no need of strong and overbearing physical appetites. Instead of impeding the spirit by clamouring to have its wants attended to, it will be the spirit's instrument. A great part of the temptations of this present life arise from the conditions in which we necessarily exist as dependent for our comfort in great measure on the body. And one can scarcely conceive the feeling of emancipation and superiority which will possess those who have no anxiety about a livelihood, no fear of death, no distraction of appetite.
The present body is for similar reasons characterized by "weakness." We cannot be where we would, nor do what we would. A man may work his twelve hours, but he must then acknowledge he has a body which needs rest and sleep. Many persons are disqualified by bodily weakness from certain forms of usefulness and enjoyment. Many persons also, though able to do a certain amount of work, do it with labour; their vitality is habitually low, and they never have the full use of their powers, but need continually to be on their guard, and go through life burdened with a lassitude and discomfort more difficult to bear than passing attacks of pain. In contradistinction to this and to every form of weakness, the resurrection body will be full of power, able to accomplish the behests of the will, and fit for all that is required of it.
But the most comprehensive contrast between the two bodies is expressed in the words, "It is sown a natural body; it is raised a spiritual body." A natural body is that which is animated by a human life and is fitted for this world. "The first man Adam was made a living soul," or, as we should more naturally say, an animal. He was made with a capacity for living; and because he was to live upon earth, he had a body in which this life or soul was lodged. The natural body is the body we receive at birth, and which is suited for its own requirements of maintaining itself in life in this world into which we are born. The soul, or animal life, of man is higher than that of the other animals, it has richer endowments and capacities, but it is also in many respects similar. Many men are quite content with the merely animal life which this world upholds and furnishes. They find enough to satisfy them in its pleasures, its work, its affairs, its friendships; and for all these the natural body is sufficient. The thoughtful man cannot indeed but look forward and ask himself what is to become of this body. If he turns to Scripture for light, he will probably be struck with the fact that it sheds no light whatever on the future of the natural body. Those who are in Christ enter into possession of a spiritual body, but there is no hint of any more perfect body being prepared for those who are not in Christ.
The spiritual body, which is reserved for spiritual men, is a body in which the upholding life is spiritual. The natural life of man both forms to a human shape and upholds the natural body; the spiritual body is similarly maintained by what is spiritual in man. It is the soul, or natural life, of man which gives the body its appetites and maintains it in efficiency; remove this soul, and the body is mere dead matter. In like manner it is the spirit which maintains the spiritual body; and by the spirit is meant that in man which can delight in God and in goodness. The body we now have is miserable and useless or happy and serviceable in proportion to its animal vitality, in proportion to its power to assimilate to itself the nutriment this physical world supplies. The spiritual body will be healthy or sickly in proportion to the spiritual vitality that animates it; that is to say, in proportion to the power of the individual spirit to delight in God and find its life in Him and in what He lives for.
We have already seen that Paul refuses to consider the resurrection of Christ as miraculous in the sense of its being unique or abnormal; on the contrary, he considers resurrection to be an essential step in normal human development, and therefore experienced by Christ. And now he enunciates the great principle or law which governs not only this fact of resurrection, but the whole evolution of God's works: "first that which is natural, afterward that which is spiritual." It is this law which we see ruling the history of creation and the history of man. The spiritual is the culminating point towards which all the processes of nature tend. The gradual development of what is spiritual, of will, of love, of moral excellence—this, so far as man can see, is the end towards which all nature constantly and steadily is working.
Sometimes, however, it occurs to one to question the law "first that which is natural, afterward that which is spiritual." If the present body hinders rather than helps the growth of the spirit, if at last all Christians are to have a spiritual body, why might we not have had this body to begin with? What need of this mysterious process of passing from life to life and from body to body? If it is true that we are here only for a few years and in the future life for ever, why should we be here at all? Why might we not at birth have been ushered into our eternal state? The answer is obvious. We are not at once introduced into our eternal condition because we are moral creatures, free to choose for ourselves, and who cannot enter an eternal state save by choice of our own: first that which is natural, first that which is animal, first a life in which we have abundant opportunity to test what appears good and are free to make our choice; then that which is spiritual, because the spiritual can only be a thing of choice, a thing of the will. There is no spiritual life or spiritual birth save by the will. Men can become spiritual only by choosing to be so. Involuntary, compulsory, necessitated, natural spirituality is, so far as man is concerned, a contradiction in terms.
Human nature is a thing of immense possibilities and range. On the one side it is akin to the lower animals, to the physical world and all that is in it, high and low; on the other side it is akin to the highest of all spiritual existences, even to God Himself. At present we are in a world admirably adapted for our probation and discipline, a world in which, in point of fact, every man does attach himself to the lower or to the higher, to the present or to the eternal, to the natural or to the spiritual. And although the results of this may not be apparent in average cases, yet in extreme cases the results of human choice are obtrusively apparent. Let a man give himself unrestrainedly and exclusively to animal life in its grosser forms, and the body itself soon begins to suffer. You can see the process of physical deterioration going on, deepening in misery, until death comes. But what follows death? Can one promise himself or another a future body which shall be exempt from the pains which unrepented sin has introduced? Are those who have by their vice committed a slow suicide to be clothed hereafter in an incorruptible and efficient body? It seems wholly contrary to reason to suppose so. And how can their probation be continued if the very circumstance which makes this life so thorough a probation to us all—the circumstance of our being clothed with a body—is absent? The truth is, there is no subject on which more darkness hangs or on which Scripture preserves so ominous a silence as the future of the body of those who in this life have not chosen God and things spiritual as their life.
On the other hand, if we consider instances in which the spiritual life has been resolutely and unreservedly chosen, we see anticipations here also of the future destiny of those who have so chosen. They may be crushed by diseases as painful and as fatal as the most flagrant of sinners endure, but these diseases frequently have the result only of making the true spiritual life shine more brightly. In extreme cases, you would almost say, the transmutation of the tortured and worn body into a glorified body is begun. The spirit seems dominant; and as you stand by and watch, you begin to feel that death has no relation to the emotions, and hopes, and intercourse you detect in that spirit. These, which seem, and are, the very life of the spirit, cannot be thought of as terminated by a merely physical change. They do not spring from, nor do they depend upon, what is physical; and it is reasonable to suppose that they will not be destroyed by it. Looking at Christ Himself and allowing due impression to be made upon us by His concernment about the highest, and best, and most lasting things, by His recognition of God and harmony with Him, by His living in God, and by His superiority to earthly considerations, we cannot but feel it to be most unlikely that such a spirit should be extinguished by bodily death.
This spiritual body we receive through the intervention of Christ. As from the first man we receive animal life, from the second we receive spiritual life. "The first man Adam was made a living soul, the last Adam a quickening spirit. And as we have borne the image of the earthy, we shall also bear the image of the heavenly." The image of the first man we have by our natural and physical derivation from him, the image of the second by spiritual derivation; that is to say, by our choosing Christ as our ideal and by our allowing His Spirit to form us. This Spirit is life-giving; this Spirit is indeed God, communicating to us a life which is at once holy and eternal.