As congregations grew and services multiplied, however, the bishop would need assistance, and to this end presbyters became officially associated with him as con-celebrants. Only gradually, however, did the sacerdotal spirit take full possession of the cult. Liturgy was long a matter of local choice; and it is probable that the complete mystery-play of the Agony and Crucifixion and Resurrection was never performed save at a few large centres, in competition with special pagan attractions of the same kind; but a eucharist, with varying ritual and hymns, sung by special officials, was the primary function of every church. As numbers and revenue increased, men of an ambitious and administrative turn would inevitably tend to enter the movement; and the second century was not out before the avarice and arrogance of leading bishops were loudly complained of. Nonetheless, their self-assertion promoted the growth of the sect. Such men, in point of fact, tended to build up the Church as warlike nobles later built up the fabric of feudalism, or self-seeking "captains of industry" the special structure of modern commercial societies. Righteousness and gentleness and spirituality could no more create a popular and revenue-yielding Church in the Roman empire than they can to-day create and maintain a "paying" industrial organization. An early bishop, indeed, needed to recommend himself to the congregation in order to get elected; but in a large town, with personal magnetism and a staff of priests, he was certain to become a determining force in church affairs. The aspiring priest looked forward to a bishopric for himself; and in an illiterate congregation there could be no effectual resistance to official assumptions which were made with any tact. Thus were the scribes and Pharisees rapidly duplicated.