immaterial; that it is 'the form of the body;'[1] and the like. It extends also to certain truths of the supernatural order, which are not revealed; as, the authenticity of certain texts or versions of the Holy Scriptures.
The Council of Trent by a dogmatic decree declared, under anathema, that the Vulgate edition is authentic. Now this is a definition or dogmatic judgment, to be believed on the infallible authority of the Church. But this truth or fact is not revealed.
(2.) Secondly, there are truths of mere human history, which therefore are not revealed, without which the deposit of the Faith cannot be taught or guarded in its integrity. For instance, that St. Peter was Bishop of Rome; that the Council of Trent and the Council of the Vatican are Œcumenical, that is, legitimately celebrated and confirmed; that Pius IX. is the successor of Peter by legitimate election. These truths are not revealed. They have no place in Scripture; and except the first, they have no place in tradition; yet they are so necessary to the order of faith, that the whole would be undermined if they were not infallibly certain. But such infallible certainty is impossible by means of human history and human evidence alone. It is created only by the infallible authority of the Church.
(3.) Thirdly, there are truths of interpretation, not revealed, without which the deposit of the faith cannot be preserved.
The Council of Trent[2] declares that to the Church it belongs to judge of the true sense and inter-
