(i) She consists of human persons, and those persons are attached both to one another and to the world outside by a perfectly balanced system of human rights known as the Law of Justice. This Law of Justice, though coming indeed from God, is, in a sense, natural and human; it exists to some extent in all societies, as well as being closely defined and worked out in the Old Law given on Sinai. It is a Law which men could have worked out, at any rate in its main principles, by the light of reason only, unaided by Revelation, and it is a Law, further, so fundamental that no Revelation could conceivably ever outrage or set it aside.
At the coming of Christ into the world, however, Supernatural Charity came with Him. The Law of Justice still remained; men still had their rights on which they might insist, still had their rights which no Christian may refuse to recognize. But such was the torrent of Divine generosity which Christ exhibited, so overwhelming was the Vision which He revealed of the supernatural charity of God towards men, that a set of ideals sprang into life such as the world had never dreamed of; more, Charity came with such power that her commands actually overruled in many instances the feeble claims of Justice, so that she bade men henceforward to forgive, for example, not merely according to Justice, but according to her own Divine nature, to forgive unto seventy times seven, to give good measure, heaped up and running over, and not the bare minimum which men had merely earned.
It was from this advent of Charity, then, that all these essentially Christian virtues of generosity and meekness and self-sacrifice sprang which Nietsche condemned as hostile to material progress.
For, from henceforth, if a man take thy coat, let him take thy cloak also; if he will compel thee to go with him one mile, go two; if he strike thee on one cheek, turn to him the other also. The Law of Natural justice is transcended and the Law of Charity and Sacrifice reigns instead. Resist not evil; do not insist always, that is to say, on your natural rights; give men more than their due, and be yourself content with less. Learn of Me, for I am meek and lowly of heart, and find rest to your souls. Forgive one another your trespasses with the same generous charity with which God has forgiven and will forgive you yours. Judge not and you shall not be judged. Do not, in personal matters, insist upon bare justice for yourself, but act on that scale and by those principles by which God Himself has dealt with you.
Meekness, then, is undoubtedly a Christian virtue. Sometimes it is obligatory, sometimes it is but a Counsel of Perfection; it stands, in any case, high among those ideals which it has been the glory of Christianity to create.
(ii) But there are other elements in life besides the human and the natural, beyond those personal rights and claims which a Christian may, if he is aiming at perfection, set aside out of charity. The Church is Divine as well as Human.
For the Church has entrusted to her, besides the rights of men, which may be sacrificed by their possessors, the rights and claims of God, which none but He can set aside. He has given into her keeping, for example, a Revelation of truths and principles which, springing out of His own Nature or of His Will, are as immutable and eternal as Himself. And it is precisely in defence of these truths and principles that the Church exhibits that which the world calls intransigeance and Jesus Christ violence.
Here, for example, is the right of a baptized Catholic child to be educated in his religion, or rather, the right of God Himself to teach that child in the manner He has ordained. Here is the revealed truth that marriage is indissoluble; here that Jesus Christ is the Son of God. Now these are not human rights or opinions at all—rights and opinions which men, urged by charity or humility, can set aside or waive in the face of opposition. They rest on an entirely different basis; they are, so to speak, the inalienable possessions of God; and it would neither be charity nor humility, but sheer treachery, for the Church to exhibit meekness or pliancy in matters such as these, given to her as they are, not to dispose of, but to guard intact. On the contrary here, exactly, comes the command, He that hath not, let him sell his cloak and buy a sword,, for here comes the line between the Divine and the Human; let all personal possessions go, all merely natural rights and claims be yielded, and let a sword take their place. For here is a matter that must be resisted, even unto blood.
The Catholic Church then is, and always will be, violent and intransigeant when the rights of God are in question. She will be absolutely ruthless, for example, towards heresy, for heresy affects not personal matters on which Charity may yield, but a Divine right on which there must be no yielding. Yet, simultaneously, she will be infinitely kind towards the heretic, since a thousand human motives and circumstances may come in and modify his responsibility. At a word of repentance she will readmit his person into her treasury of souls, but not his heresy into her treasury of wisdom; she will strike his name eagerly and freely from her black list of the rebellious, but not his book from the pages of her Index. She exhibits meekness towards him and violence towards his error; since he is human, but her Truth is Divine.
It is, then, from a modern confusion of thought with regard to the realms of the Divine and the Human that the amazing inability arises, on the world's part, to understand the respective principles on which the Catholic Church acts in these two and utterly separate departments. The world considers it reasonable for a country to defend its material possessions by the sword, but intolerant and unreasonable for the Church to condemn, resisting even unto blood, principles which she considers erroneous or false. The Church, on the other hand, urges her children again and again to yield rather than to fight when merely material possessions are at stake, since Charity permits and sometimes even commands men to be content with less than their own rights, and yet again, when a Divine truth or right is at stake, here she will resist unfaltering and undismayed, since she cannot be "charitable" with what is not her own; here she will sell her cloak and buy that sword which, when the dispute was on merely temporal matters, she thrust back again into its sheath.