The Manichean doctrine, then, is exposed to every objection to which a theory can be obnoxious. It is gratuitous; it is inapplicable to the facts; it supposes more causes than are necessary; it fails to explain the phenomena, leaving the difficulties exactly where it found them. Nevertheless, such is the theory, how easily soever refuted when openly avowed and explicitly stated, which in various disguises appears to pervade the explanations, given of the facts by most of the other systems; nay, to form, secretly and unacknowledged, their principal ground-work. For it really makes very little difference in the matter whether we are to account for evil by holding that the Deity has created as much happiness as was consistent with “the nature of things,” and has taken every means of avoiding all evil except “where it necessarily existed” or at once give those limiting influences a separate and independent existence, and call them by a name of their own, which is the Manichean hypothesis.
The most remarkable argument on this subject, and the most distinguished both for its clear and well ordered statement, and for the systematic shape which it assumes, is that of Archbishop King. It is the great text-book of those who study this subject; and like the famous legal work of Littleton, it has found an expounder yet abler and more learned than the author himself. Bishop Law’s commentary is full of information, of reasoning and of explication; nor can we easily find anything valuable upon the subject which is not contained in the volumes of that work. It will, however, only require a slight examination of the doctrines maintained by these learned and pious men, to satisfy us that they all along either assume the thing to be proved, or proceed upon suppositions quite inconsistent with the infinite power of the Deity--the only position which raises a question, and which makes the difficulty that requires to be solved.
According to all the systems as well as this one, evil is of two kinds--physical and moral. To the former class belong all the sufferings to which sentient beings are exposed from the qualities and affections of matter independent of their own acts; the latter class consists of the sufferings of whatever kind which arise from their own conduct. This division of the subject, however, is liable to one serious objection; it comprehends under the second head a class of evils which ought more properly to be ranged under the first. Nor is this a mere question of classification: it affects the whole scope of the argument. The second of the above-mentioned classes comprehends both the physical evils which human agency causes, but which it would have no power to cause unless the qualities of matter were such as to produce pain, privation and death; and also the moral evil of guilt which may possibly exist independent of material agency, but which, whether independent or not upon that physical action, is quite separable from it, residing wholly in the mind. Thus a person who destroys the life of another produces physical evil by means of the constitution of matter, and moral evil is the source of his wicked action. The true arrangement then is this: Physical evil is that which depends on the constitution of matter, or only is so far connected with the constitution of mind as that the nature and existence of a sentient being must be assumed in order to its mischief being felt. And this physical evil is of two kinds; that which originates in human action, and that which is independent of human action, befalling us from the unalterable course of nature. Of the former class are the pains, privations and destruction inflicted by men one upon another; of the latter class are diseases, old age and death. Moral evil consists in the crimes, whether of commission or omission, which men are guilty of--including under the latter head those sufferings which we endure from ill-regulated minds through want of fortitude or self-control. It is clear that as far as the question of the origin of evil is concerned, the first of these two classes, physical evil, depends upon the properties of matter, and the last upon those of mind. The second as well as the first subdivision of the physical class depends upon matter; because, however ill-disposed the agent’s mind may be, he could inflict the mischief only in consequence of the constitution of matter. Therefore, the Being, who created matter enabled him to perpetrate the evil, even admitting that this Being did not, by creating the mind also give rise to the evil disposition; and admitting that, as far as regards this disposition it has the same origin with the evil of the second class, or moral evil, the acts of a rational agent.