It may thus enjoy immense power, especially if there be no true national system of primary education; it may well be doubted whether it possesses as much power in any other country as in Ireland. But like other voluntary religious associations the Catholic Church is not wholly withdrawn from the supervision and control of the Law Courts. A series of decisions of our highest courts with reference to Churches in Ireland and Scotland, and the colonies, have laid down certain principles equally applicable to the Roman Catholic Church and to all other religious bodies; in particular, these principles: that the State can exercise control over all religious bodies possessing property when it is proved to be contravening its rules to the injury of members. In the case of societies resting upon a consensual basis, Courts of Justice are bound when due complaint is made that a member of the society has been injured as to his rights in any matter of a mixed spiritual and temporal character, to inquire into the laws or rules of the Society.(93) Further the authority of a Church cannot be legally used for purposes inimical to the State or contrary to any statute. It may make rules for its own members; it cannot enforce them against others; they are invalid against them if contrary to the terms of any statute. It may, for example, declare that it will not regard a marriage with a deceased wife’s sister as valid; it may refuse to recognise as members those who so marry. But such rules will not legally invalidate a union which a statute has legalised. Probably this has not always been fully borne in mind by those who have denounced the promulgation of the decree _Ne temere_ in Ireland. Resolutions have been passed against it here and in Ireland. Many Nonconformist bodies have protested against the promulgation of the decree in British Dominions. The decree is, I think, objectionable for several reasons, and not least because it discourages mixed marriages, an effect which seems to me deplorable, for nothing is better calculated to put an end to uncharitableness and hatred than the frequency of such unions. But while such a decree may do harm, it will have no direct effect except as between the members of the Catholic Church _in foro conscientiæ_. The Irish marriage law, which with a few exceptions is the same as the English, is binding on all Catholics and Protestants. Lord Llandaff who speaks at once as a lawyer and as a Catholic, puts this point clearly: “The invalidity was that of the sacramental and not of the legal marriage, and what the Church said to one of her subjects in such circumstances was: ‘You are married; you are a husband; but you may not receive the sacrament, and therefore you are in a state of sin, and in that sense your marriage in void, according to your conscience, though not according to the law.’ ”(94)