The congregational ideal, as a passing stage in his theory of Church formation, absorbed him, as we have already seen, more particularly from the year 1523. The congregations were to be self-supporting after once the new teaching had been introduced amongst them. In accordance with the Evangel, they were to be quite independent and to choose their own spiritual overseers. From among these, superintendents were to be selected, to be at the head of the congregations of the country, and as it were general-bishops, assisted by visitors, of course all laymen, no less than those from whom they derived their authority and by whom, for instance for bad doctrine, they might be removed. The above-mentioned letter sent to Prague, on the appointment of ministers in the Church (1523), contained further details. Other statements made by Luther about that same time, and already quoted, supply what is here lacking; for instance, his ascribing to each member of the congregation the right of judging of doctrine and of humbly correcting the preacher, should he err, even before the whole assembly, according to the Spirit of God which inspires him.[57] Thus he had relinquished the idea of proceeding by means of the assistance of the Princes and nobles, and had come to place all his hopes in the fruitfulness and productive power of the congregational life. But here again he met with nothing but disappointment. It was not encouraging to find, that, on the introduction of the new teaching and in the struggle against alleged formalism and holiness-by-works, what Christian spirit previously existed was inclined to take to flight, whilst an unevangelical spirit obtruded itself everywhere. Hence his enlargement of his earlier congregational theory by the scheme for singling out the faithful, i.e. the true Christians, and forming of them a special community. Just as his belief in the spontaneous formation of a new state of things testified to his abnormal idealism, so this new idea of an assembly within the congregation displays his utter lack of any practical spirit of organisation. As to how far this perfecting of his congregational Churches tended to produce a sort of esoteric Church, will be discussed elsewhere (vol. v., xxix., 8).