Now, since we have started from the assumption that God does exist, it is impossible to make Him an exception to the rule which holds of the spirits of inferior creatures, and even of inanimate matter. If, therefore, He can cause or stop movement, He can, without further breach of any law of Nature, bring into play the laws of Nature. Or, to state the same proposition conversely, we must admit that whatever wonders God may cause by bringing into operation a law of Nature through the means of affecting motion in matter, cannot be called a breach of the laws of Nature. It is, of course, understood that this proposition is limited to the results of motion; it does not affirm that the cause of the motion may not be a breach of a law of Nature. This question will remain for future examination; at present it is neither affirmed nor denied.

Let us in the meantime, however, consider what we have reached by the proposition above stated. What are called miracles may be divided into three classes. The first are purely spiritual, affecting mind without the intervention of matter, such as visions (though these may originate in the brain, and therefore belong to the next class), gifts of tongues, inspirations, mental resolutions. The second affect mind in connection with matter, such as, perhaps, the healing of paralytic or epileptic affections, and certainly the restoration of life to the dead. The third affect matter solely; they include the healing of wounds, or of corporeal disease, such as blindness, or fever; the dividing of waters; the walking on water, or raising an iron axe-head from the bottom of water; the falling of walls or trees; the opening of prison-doors, and such like.

The first two classes we may, in any discussion limited to the laws of Nature, leave out of view, because it cannot be said that we know any laws of Nature affecting mind by itself, or even mind in relation to matter. Metaphysicians have interested themselves in trying to trace the origin or sequence of intellectual processes, but I hardly think any would assert they had discovered or defined what can properly be called a law; and certainly, if any do assert it, the accuracy of the assertion is controverted by as many philosophers on the other side. Any direct influence of God on mind cannot, therefore, be charged with being in violation of natural law. Nor can it even be declared to be contrary to universal experience, since in this case the negative evidence of those who have not experienced it would only be set against the positive evidence of innumerable persons who affirm that they have experienced it.

The influence of mind on matter, and matter on mind, are also so obscure, that it cannot be affirmed that anything which mental operation can effect on one's own body is contrary to natural law. No physiologist will assert that mental resolution, or conviction, tending towards recovery from sickness, is without some power to bring that result to pass. They will admit also that this is peculiarly the case in regard to those disorders which, in pure ignorance of their actual source, they are fain to call hysterical, neuralgic, or generally nervous. They are all acquainted with many cases in their own experience of recovery from such disorders in which no physical cause for recovery can be imagined. If, then, God should convey to the mind of a patient an impression which brings about recovery, there would clearly be no violation of natural law. With regard to the restoration of life, it is quite true that this is beyond the ordinary power of man's volition. Nevertheless, at each moment of our lives there is a communication of life to the dead matter which has formed our food, but which, after digestion, becomes a part of our living organs; and this is true even in the nutrition of plants. How or at what moment the mind enters or becomes capable of affecting our frames, we do not know. But this happens at some moment before or during birth; its doing so at a subsequent period is, therefore, not a breach of natural law, but is only an instance of natural law coming into operation, by the same cause, at a period differing from that which is customary. The act, whatever it is, is not exceptional, but ordinary. The time is alone exceptional.

We have now to consider the strictly physical phenomena to which the name of miracles is in this discussion confined, and to which the objection that they are contrary to natural laws is commonly stated.

A very large number of these are at first glance seen to be only instances of inertia being affected. To walk on water, to make water stand in a heap, to raise a body from the ground, to cast down walls, or move bolts and doors, are obviously exertions of simple mechanical force such as we ourselves daily employ. Their effective cause is neither more nor less than an interference with the law of inertia, and by the previous demonstration they are therefore not to be reckoned as breaches of any law of Nature.

Let us try if this can be made clearer by an example. It has been stated before that if iron were made to swim on water by modification of the law of gravity it would be creation of a new substance differing from iron in being of less specific gravity. At the same time, the original iron of normal specific gravity would have disappeared. These processes of creation and destruction would be so unprecedented that we should justly call them violations of the ordinary laws of nature. But at least we should then expect that the light iron thus created would be permanently light, and we should call it another breach of the laws of nature if on lifting it from the water we found it heavy. But if we were to hold a magnet of suitable power over the original heavy iron, when at the bottom of the water, we might see it rise and float, although not touched or upheld by any visible substance, and although its specific gravity remained constant. In this case it would be moved by a power which overcomes gravity, but there would be no creation nor destruction of any property, and no natural law would be broken. But if now we substitute for "magnetic" "Divine" power, there is still no breach of a natural law, for no property is created or destroyed. In both cases the acting agent is a power outside the iron, invisible and unknown, except by the effects. The effect of both is the same: it is to give motion to matter, and nothing more. Hence, neither violate any law of nature except that of inertia.

Proceeding to another class of miracles, which seem at first to be creative, we shall find that they also come within the range of familiar human potentiality. The making of bread, or meal, or oil, or wine, are instances of chemical synthesis. These substances are composed of three or four elements, all gaseous except carbon (to be absolutely accurate, we must add minute quantities of eight other elements), which no chemist has yet succeeded in uniting in such forms. But chemists have succeeded in forming certain substances by bringing together their elements, of which water is the simplest type, and others of greater complexity are every year being attained. These are formed by moving into proximity, or admixture, the elementary ingredients, under circumstances favourable to their union in the desired combination, and the combination then proceeds by the operation of natural laws. No one would be surprised to hear that some chemist had thus attained to form starch or gluten, the main ingredients of bread; or oil, or spirit, or essences; for if it were announced we should all know that he had only discovered some new method of manipulation by which circumstances were arranged so as to favour the natural laws which effect the union of the necessary elements. Therefore, if these substances are formed by Divine power, it is not creation—it is only the chemist's work, adopting natural laws for its methods, and bringing them into play by transposition of material substances.

Meteorological processes—such as lightning, rain, drought, winds—are sometimes made the immediate cause of "miracles," as when the wind caused the waters of the Red Sea to flow back, or brought the flights of quails, or locusts. These are effects which we know wind is quite capable of producing, and does produce naturally. Was there then any breach of natural laws (beyond that of inertia) in causing such winds to blow? or in bringing up thunder-clouds? or in causing an arid season? We cannot, indeed, say that there was not; but as little can we say that there was. For since we ourselves have acquired such power over lightning, the most inscrutable and irresistible of all meteorological agencies, as to be able to lead it where we will, how shall we say that God's infinite knowledge has not the same power over the winds and the clouds, by employing only natural agencies for His work, and employing these only by the operation of motion given to matter.