At this stage we are brought into the presence of the question: Is the Deluge represented as a miraculous or a merely natural phenomenon? Yet, from a scientific point of view, this question has not the significance usually attributed to it. True miracles are not, and cannot be, contraventions or violations of God's natural laws. They are merely unusual operations of natural powers under their proper laws, but employed by the Almighty for effecting spiritual ends. Thus, naturally, they are under the laws of the material world, but, spiritually, they belong to a higher sphere. In the present case, according to the narrative in Genesis, the Flood was physically as much a natural phenomenon as the earthquakes at Ischia, or the eruption of Krakatoa. It was a miraculous or spiritual intervention only in so far as it was related to the destruction of an ungodly race, and as it was announced beforehand by a prophet. Had the approaching eruption of Krakatoa been intended as a judgment on the wicked, and had it been revealed to anyone who had taken pains to warn his countrymen and then to provide for his own safety, this would have given to that eruption as much of a miraculous character as the Bible attaches to the Deluge. In the New Testament, where we have more definite information as to miracles, they are usually called 'powers' and 'signs,' less prominence being given to the mere wonder which is implied in the term 'miracle.' Under the aspect of _powers_, they imply that the Creator can do many things beyond our power and comprehension, just as in a lesser way a civilised man, from his greater knowledge of natural laws and command over natural energies, can do much that is incomprehensible to a savage; and in this direction science teaches us that, given an omnipotent God, the field of miracle is infinite. As _signs_, on the other hand, such displays of power connect themselves with the moral and spiritual world, and become teachers of higher truths and proofs of Divine interference. The true position of miracles as signs is remarkably brought out in that argument of Christ, in which He says, 'If ye believe not My words, believe Me for the works' sake.' It is as if a civilised visitor to some barbarous land, who had been describing to an incredulous audience the wonders of his own country, were to exhibit to them a watch or a microscope, and then to appeal to them that these were things just as mysterious and incredible as those of which he had been speaking.