THE EPISCOPATE
The first three centuries of Christianity witnessed the development of the episcopal system in the Church. Each provincial city had its bishop, assisted by priests and deacons. An archbishop (sometimes called a metropolitan) presided over the bishops of each province, and a patriarch had jurisdiction, in turn, over metropolitans. This graded arrangement of ecclesiastical officers, from the lowest to the highest, helped to make the Church centralized and strong. It appears to have been modeled, almost unconsciously, on the government of the Roman Empire. [2]
THE PATRIARCHS
The development of the patriarchate calls for special notice. At the time of the Council of Nicaea [3] there were three patriarchs, namely, the bishops of Rome, Antioch, and Alexandria. These cities ranked among the most important in the Roman world. It was only natural, therefore, that the churches established in them should be singled out for preëminence. Some years after the removal of the capital to Constantinople, the bishop of that imperial city was recognized as a patriarch at a general council of the Church. In the fifth century the bishop of Jerusalem received the same dignity. Henceforth there were five patriarchs—four in the East but only one in the West.
CLERGY AND LAITY
The Christian Church was a very democratic organization. Patriarchs, archbishops, bishops, priests, and deacons were drawn from all ranks of life. No special training at first was considered necessary to fit them for their duties, though the more celebrated ministers were often highly educated. To eke out their salaries the clergy sometimes carried on business as farmers and shopkeepers. Where, however, a church had sufficient funds to support its bishop, his engagement in secular affairs was discouraged and finally prohibited. In the fourth century, as earlier, priests and bishops were generally married men. The sentiment in favor of celibacy for the clergy became very pronounced during the early Middle Ages, especially in the West, and led at length to the general abandonment of priestly marriage in those parts of Europe where papal influence prevailed. Distinctive garments for clergymen did not begin to come into use until the fifth century, when some of them began to don clothing of a more sober hue than was fashionable at the time. Clerical vestments were developed from two pieces of ancient Roman dress—the tunic and the toga. [4] Thus the clergy were gradually separated from the people, or laity, by differences in dress, by their celibate lives, and by their abstention from worldly occupations.
HERESIES
While the Church was perfecting her organization, she was also elaborating her doctrines. Theologians engaged in many controversies upon such subjects as the connection of Christ with God and the nature of the Trinity. In order to obtain an authoritative expression of Christian opinion, councils of the higher clergy were held, at which the opposing views were debated and a decision was reached. The Council of Nicaea, which condemned Arianism, formed the first, and one of the most important, of these general gatherings of the Church. After the Church had once expressed itself on any matter of Christian belief, it was regarded as unlawful to maintain a contrary opinion. Those who did so were called heretics, and their teachings, heresies. The emperor Theodosius, whose severe laws finally shattered the ancient paganism, [5] devoted even more attention to stamping out heresies among his Christian subjects. He prohibited meetings of heretics, burned their books, and threatened them with death if they persisted in their peculiar doctrines. During his reign a Spanish bishop and six of his partisans were executed for holding unorthodox beliefs. This was the beginning of the persecutions for heresy.
WORSHIP
As soon as Christianity had triumphed in the Roman Empire, thus becoming the religion of the rich and powerful as well as the religion of the poor and lowly, more attention was devoted to the conduct of worship. Magnificent church buildings were often erected. Their architects seem to have followed as models the basilicas, or public halls, which formed so familiar a sight in Roman cities. [6] Church interiors were adorned with paintings, mosaic pictures, images of saints and martyrs, and the figure of the cross. Lighted candles on the altars and the burning of fragrant incense lent an additional impressiveness to worship. Beautiful prayers and hymns were composed. Some of the early Christian hymns, such as the Gloria in Excelsis and the Te Deum Laudamus, are still sung in our churches. Organs did not come into use until the seventh century, and then only in the West, but church bells, summoning the worshiper to divine service, early became attached to Christian edifices.