to the knowledge of mankind—some external mark is required. Christ proved the authority of His mission by miracles, and then instituted the Apostolate. His words and works were sufficient evidence for those who actually witnessed them. For us some other proof is necessary; and this may be either some special miracle accompanying the preaching of the Gospel, or the general moral miracle of the continuity and efficiency of the Apostolate. This subject will be treated at greater length in the treatise on Faith. The sanction of the Apostolate consists in the rewards and punishments reserved hereafter for those who accept or reject its teaching, and is the complement of its authority. Submission to Revelation is the fundamental condition of salvation, and consequently submission to the Apostolate, which is the means of transmitting Revelation, must be enforced by the same sanctions as submission to Revelation itself.
III. The act of promulgation must be a teaching (magisterium), and not a mere statement; this teaching must witness to its identity with the original Revelation, i.e. it must always show that what is taught is identical with what was revealed; it must be a “teaching with authority”—that is, it must command the submission of the mind, because otherwise the unity and universality of the Faith could not be attained.
IV. The subject-matter of the Apostolate is co-extensive with the subject-matter of Revelation. It embraces, besides the truths directly revealed, those also which are intimately connected and inseparably interwoven therewith (cf. § 5). Divine Faith cannot indeed be commanded in the case of truths not directly revealed by God; nevertheless the Teaching Body, the living witness and ambassador plenipotentiary of the Word of God, must, when occasion requires, be empowered to impress the seal of authenticity on subordinate truths also, for without this power the object of the Apostolate would in many cases be thwarted. The Church exercises this power when authoritatively passing judgment on dogmatic facts (facta dogmatica), or applying minor censures to unsound propositions.