24. Concerning sin or moral evil, although it happens very often that it may serve as a means of obtaining good or of preventing another evil, it is not this that renders it a sufficient object of the divine will or a legitimate object of a created will. It must only be admitted or _permitted_ in so far as it is considered to be a certain consequence of an indispensable duty: as for instance if a man who was determined not to permit another's sin were to fail of his own duty, or as if an officer on guard at an important post were to leave it, especially in time of danger, in order to prevent a quarrel in the town between two soldiers of the garrison who wanted to kill each other. 25. The rule which states, _non esse facienda mala, ut eveniant bona_, and which even forbids the permission of a moral evil with the end of [138] obtaining a physical good, far from being violated, is here proved, and its source and its reason are demonstrated. One will not approve the action of a queen who, under the pretext of saving the State, commits or even permits a crime. The crime is certain and the evil for the State is open to question. Moreover, this manner of giving sanction to crimes, if it were accepted, would be worse than a disruption of some one country, which is liable enough to happen in any case, and would perchance happen all the more by reason of such means chosen to prevent it. But in relation to God nothing is open to question, nothing can be opposed to _the rule of the best_, which suffers neither exception nor dispensation. It is in this sense that God permits sin: for he would fail in what he owes to himself, in what he owes to his wisdom, his goodness, his perfection, if he followed not the grand result of all his tendencies to good, and if he chose not that which is absolutely the best, notwithstanding the evil of guilt, which is involved therein by the supreme necessity of the eternal verities. Hence the conclusion that God wills all good _in himself antecedently_, that he wills the best _consequently_ as an _end_, that he wills what is indifferent, and physical evil, sometimes as a _means_, but that he will only permit moral evil as the _sine quo non_ or as a hypothetical necessity which connects it with the best. Therefore the _consequent will_ of God, which has sin for its object, is only _permissive_.