It is for the purpose of affording this assistance that the Roman congregations have been established. Their origin may be found in those consistories of cardinals which, from the ninth to the sixteenth centuries, constituted the permanent senate of the pontiff, and assembled twice or thrice a week in his palace, to consider measures for the reformation of both clergy and people, to receive the complaints of all classes of the faithful, and to decide the controversies and disputes of the entire world. These consistories were themselves the offspring of those Roman councils which were so frequent during the first ten ages of the church; for it may be well remarked that the church, though based upon the supreme authority of the popes, has never neglected those human institutions which could increase its influence or lighten the labors of its head. Its principles have always been the same, but it has suited the method of their application to the necessities of each succeeding age. Like the councils, the consistories were composed of men renowned for their faith, their learning, and their sanctity. The sovereign pontiffs continually added to the college of cardinals the most illustrious of the clergy, and called to Rome, from all quarters of the globe, those religious, those ecclesiastics, and those prelates whose assistance they deemed most useful in the government of the church. These men were absolutely independent of the secular power, and totally secluded from its influence. Living in constant intercourse with the pontiff himself, they enjoyed all necessary liberty; they exercised for life the powers confided to them; they had no worldly care or fear, and they enjoyed a rank from which they could not be deposed. They spent their time in prayer, in charitable works, in the study of sacred literature, and in the discharge of their duties. Where could be found more intelligence, greater learning, or more ample guarantees for the preservation of truth? The principle of the church, that her power, though essentially resident in the person of one, should be disseminated through the instrumentality of many, is applicable to all degrees of the ecclesiastical hierarchy. Thus, the bishop and his chapter are considered as forming but one body, while yet the decretal _novit_ of Alexander III. secures to bishops the management of their own churches without the consent or co-operation of their brethren. Thus, also, the popes have near them a body of cardinals, an illustrious senate, composed of the most learned and holy men of the whole world, who assist them in the direction of the church. This senate, collected in one assemblage under the presidency of the pontiff, forms the consistory, at whose sessions the most important causes are frequently determined.