Pius XII, 1939–

with the origin of the human body arising from already existing and living matter; and in such a way that the reasonings of both theories, namely of those in favor and of those in opposition, are weighed and judged with due seriousness, moderation, and temperance; and provided that all are ready to yield to the judgment of the Church, to which Christ has entrusted the duty of interpreting Sacred Scriptures authentically, and of preserving the dogmas of faith.¹ Yet some with daring boldness transgress this freedom of discussion, acting as if the origin of the human body from previously existing and living matter, were already certain and demonstrated from certain already discovered indications, and deduced by reasoning, and as if there were nothing in the sources of divine revelation which demands the greatest moderation and caution in this thinking.

2328. When there is a question of another conjectural opinion, namely, of polygenism so-called, then the sons of the Church in no way enjoy such freedom. For the faithful in Christ cannot accept this view, which holds that either after Adam there existed men on this earth, who did not receive their origin by natural generation from him, the first parent of all; or that Adam signifies some kind of multitude of first parents; for it is by no means apparent how such an opinion can be reconciled with what the sources of revealed truth and the acts of the magisterium of the Church teaches about original sin, which proceeds from a sin truly committed by one Adam, and which is transmitted to all by generation, and exists in each one as his own.²

2329. Just as in the biological and anthropological sciences, so also in the historical there are those who boldly transgress the limits and precautions established by the Church. And, We especially deplore a certain entirely too liberal manner of interpreting the historical books of the Old Testament, the supporters of which defend their case by reference without warrant to a letter given not long ago by the Pontifical Council on Biblical Affairs to the Archbishop of Paris.³ This Letter plainly advises that the eleven first chapters of Genesis, although they do not conform properly with the methods of historical composition which distinguished Greek and Latin writers of past events, or the learned men of our age have used, nevertheless in a certain sense, to be examined and determined more fully by exegetes, are truly a kind of history; and that the same chapters, in simple and figurative speech suited to the mentality of a people of little culture, both recount the principal truths on which the attainment of our eternal salvation depends, and also the popular de-