For that nationality was now beginning to be supported by a new and vigorous power. The Emperors had indeed opposed it as disloyal and revolutionary: had more than once put forth their whole strength to root it out. But the unity of the Empire, and the ease of communication through its parts, had favoured the spread of Christianity: persecution had scattered the seeds more widely, had forced on it a firm organization, had given it martyr-heroes and a history. When Constantine, partly perhaps from a genuine moral sympathy, yet doubtless far more in the well-grounded belief that he had more to gain from the zealous sympathy of its professors than he could lose by the aversion of those who still cultivated a languid paganism, took Christianity to be the religion of the Empire, it was already a great political force, able, and not more able than willing, to repay him by aid and submission. Yet the league was struck in no mere mercenary spirit, for the league was inevitable. Of the evils and dangers incident to the system then founded, there was as yet no experience: of that antagonism between Church and State which to a modern appears so natural, there was not even an idea. Among the Jews, the State had rested upon religion; among the Romans, religion had been an integral part of the political constitution, a matter far more of national or tribal or family feeling than of personal[6]. Both in Israel and at Rome the mingling of religious with civic patriotism had been harmonious, giving strength and elasticity to the whole body politic. So perfect a union was now no longer possible in the Roman Empire, for the new faith had already a governing body of her own in those rulers and teachers whom the growth of sacramentalism, and of sacerdotalism its necessary consequence, was making every day more powerful, and marking off more sharply from the mass of the Christian people. Since therefore the ecclesiastical organization could not be identical with the civil, it became its counterpart. Suddenly called from danger and ignominy to the seat of power, and finding her inexperience perplexed by a sphere of action vast and varied, the Church was compelled to frame herself upon the model of the secular administration. Where her own machinery was defective, as in the case of doctrinal disputes affecting the whole Christian world, she sought the interposition of the sovereign; in all else she strove not to sink in, but to reproduce for herself the imperial system. And just as with the extension of the Empire all the independent rights of districts, towns, or tribes had disappeared, so now the primitive freedom and diversity of individual Christians and local Churches, already circumscribed by the frequent struggles against heresy, was finally overborne by the idea of one visible catholic Church, uniform in faith and ritual; uniform too in her relation to the civil power and the increasingly oligarchical character of her government. Thus, under the