The Church of Corinth was in some danger of forgetting this. One of its members in particular had been guilty of a scandalous breach even of the heathen code of morals; and of him Paul uncompromisingly says, "Put away from among yourselves that wicked person." Even with sinners of a less flagrant sort, no communion was to be held. "If any man that is called a brother"--that is, claiming to be a Christian--"be a fornicator, or covetous, or an idolater, or a railer, or a drunkard, or an extortioner, with such a one you must not even eat." No doubt there is risk and difficulty in administering this law. The graver hidden sin may be overlooked, the more obvious and venial transgression be punished. But the duty of the Church to maintain its sanctity is undeniable, and those who act for the Church must do their best in spite of all difficulty and risk. The prime duty, however, lies with the members, not with the rulers, in the Church. Those whose function it is to watch over the purity of the Church would be saved from all doubtful action were the individual members alive to the necessity of holy living. This, they should bear in mind, is the very object of the Church's existence and of their being in it. 3. Thirdly, it is ever to be borne in mind that the true Church of Christ is to be found, not in one country nor in one age, not in this or that Church, whether it assume the title of "Catholic" or pride itself on being national, but is composed of "all that in every place call upon the name of our Lord Jesus Christ." Happily the time is gone by when with any show of reason any one Church can claim to be catholic on the ground of its being coextensive with Christendom. It is true that Cardinal Newman, one of the most striking figures and probably the greatest Churchman of our own generation, attached himself to the Church of Rome on this very ground: that it possessed this note of catholicity. To his eye, accustomed to survey the fortunes and growth of Christ's Church during the early and mediæval centuries, it seemed that the Church of Rome alone had any reasonable claim to be considered the Church catholic. But he was betrayed, as others have been, by confounding the Church visible with the Church invisible. No one visible Church can claim to be the Church catholic. Catholicity is not a matter of more or less; it cannot be determined by a majority. No Church which does not claim to contain the whole of Christ's people without exception can claim to be catholic. Probably there are some who accept this alternative, and do not see it to be absurd to claim for any one existing Church that it is coextensive with the Church of Christ.