The connexion of Hume’s view with his metaphysical principles will be evident. If nature be known only through the senses, cause is only the material antecedent visible to the senses. Nature is not seen to be the sphere of the operation of God’s regular will; and the sole proof of interference with nature must be a balancing of inductions. It will be clear also that the true method of replying to Hume has been rightly perceived by those who consider that the difficulty must be met by philosophy, and not by history. Suppose the historic evidence sufficient to attest the wonder, it does not prove that the wonder is a miracle. The presumption in favour of this may be indefinitely increased by the peculiarity of the circumstances, which frequently forbid the idea of a mere marvel; but the real proof must depend upon the previous conception, which we bring to bear upon the question, in respect to the being and attributes of God, and His relation to nature. The antecedent probability converts the wonder into a miracle. It acts in two ways. It obliterates the cold materialistic view of the regularity of nature which regards material laws to be unalterable, and the world to be a machine; and it adds logical force to the weaker induction, so as to allow it to outweigh the stronger. No testimony can substantiate the interference with a law of nature, unless we first believe on independent grounds that there is a God who has the power and will to interfere.(483) Philosophy must accordingly establish the antecedent possibility of miracles; the attribute of power in God to effect the interruption, and of love in God to prompt him to do it. The condition therefore of attaining this conception must be by holding to a monotheistic conception of God as a being possessing a personal will, and regarding mind and will as the rule by which to interpret nature and law,(484) and not conversely measuring the mental by the material. In this manner law becomes the operation of God’s personal fixed will, and miracle the interposition of his personal free will. It will be perceived that in distinguishing miracle from wonder, we also take into account the final cause of the alleged interposition as a reason weighty enough to call forth divine interposition. As soon as we introduce the idea of a personal intelligent God, we regard Him as acting with a motive, and measure His purposes, partly by analogy to ourselves, partly by the moral circumstances which demand the interposition.(485)