The Two Vatican Councils

Much progress has therefore been made. Suffice it here to refer to the relevant findings of the First Ecumenical Vatican Council. From these it is obvious that the doctrine concerning the Church is one which must claim the attention not only of pastors and teachers, but also of the faithful, and indeed of all Christians. This doctrine is a necessary stepping-stone to the understanding of Christ and His work. It is precisely because the Second Vatican Council has the task of dealing once more with the doctrine de Ecclesia and of defining it, that it has been called the continuation and complement of the First Vatican Council.

We do not wish to dilate further on this subject, as We must be brief and you are already well acquainted with it. It has been widely publicized within the Church today, both as matter for catechesis and for the spiritual life.