To participate in this, and therefore to accompany even the work of erudite theology in the sticter sense, is the task of the community and therefore of each individual member. The Christian is not free to adopt any current religious idea, to espouse his own private philosophy, and then to urge this upon the community. On the other hand, he is both free and yet also summoned and obliged to reflect not he Word which underlies the community and is to be declared by it, and to give responsible expression to his reflections. No one will do this obediently unless he is prepared to let himself be stimulated, advised and guided by others, including professional theologians. No one will do it obediently if he is not in dialogue not only with God but also with his fellow-men and fellow-Christians. The freedom at issue is freedom int he community and not a foolish freedom on one’s own responsibility and on the basis of hopeful or defiant private inspirations. No one, however, can be content at this point to be a mere “layman,” to be indolent, to be no more than a passive spectator or reader. No one is excused the task of asking questions or the more difficult task of providing and assessing answers. Preaching in the congregation, and the theology which serves its preparation, can be faithful to its theme and therefore relevant and adapted to the circumstances and edifying to the community, only if it is surround, sustained and constantly stimulated and fructified by the questions and answers of the community. With his own questions and answers in matters of right understanding and doctrine, each individual Christian thus participates in what the community is commanded to do. If he holds aloof, or slackens, or allows himself to sleep, or wanders into speculation and error, he must not be surprised if sooner or later the same will have to be said about the community as such and particularly about its more responsible members. How many complaints about the “Church” would never be made if only those who make them were to realize that we ourselves are the Church, so that what it has or has not to say stands or falls with us!
Church Dogmatics III/4: The Doctrine of Creation: The Command of God the Creator, §55.3 p. 498