Here we begin chapter III, a section titled, “Sacred Scripture, Its Inspiration And Divine Interpretation.” Let’s read about an authorship shared, an assertion that a believer won’t be waylaid by the Biblical text (Catholics would have something to say about misinterpretation, though), and ultimately reflected in Paul’s passage from his second letter to Timothy:
Those divinely revealed realities which are contained and presented in Sacred Scripture have been committed to writing under the inspiration of the Holy Spirit. For holy mother Church, relying on the belief of the Apostles (see John 20:31; 2 Tim. 3:16; 2 Peter 1:19-20, 3:15-16), holds that the books of both the Old and New Testaments in their entirety, with all their parts, are sacred and canonical because written under the inspiration of the Holy Spirit, they have God as their author and have been handed on as such to the Church herself.(cf. First Vatican Council, Dogmatic Constitution on the Catholic Faith, Chap. 2 “On Revelation:” Denzinger 1787 (3006); Biblical Commission, Decree of June 18,1915: Denzinger 2180 (3629): EB 420; Holy Office, Epistle of Dec. 22, 1923: EB 499.) In composing the sacred books, God chose (authors) and while employed by Him (cf. Pius XII, encyclical “Divino Afflante Spiritu,” Sept. 30, 1943: A.A.S. 35 (1943) p. 314; Enchiridion Bible. (EB) 556.) they made use of their powers and abilities, so that with Him acting in them and through them, (“In” and “for” man: cf. Heb. 1, and 4, 7; (“in”): 2 Sm. 23,2; Matt.1:22 and various places; (“for”): First Vatican Council, Schema on Catholic Doctrine, note 9: Coll. Lac. VII, 522.) they, as true authors, consigned to writing everything and only those things which He wanted. (Leo XIII, encyclical “Providentissimus Deus,” Nov. 18, 1893: Denzinger 1952 (3293); EB 125.)
Therefore, since everything asserted by the inspired authors or sacred writers must be held to be asserted by the Holy Spirit, it follows that the books of Scripture must be acknowledged as teaching solidly, faithfully and without error that truth which God wanted put into sacred writings (cf. St. Augustine, “Gen. ad Litt.” 2, 9, 20:PL 34, 270-271; Epistle 82, 3: PL 33, 277: CSEL 34, 2, p. 354. St. Thomas, “On Truth,” Q. 12, A. 2, C.Council of Trent, session IV, Scriptural Canons: Denzinger 783 (1501). Leo XIII, encyclical “Providentissimus Deus:” EB 121, 124, 126-127. Pius XII, encyclical “Divino Afflante Spiritu:” EB 539.) for the sake of salvation. Therefore “all Scripture is divinely inspired and has its use for teaching the truth and refuting error, for reformation of manners and discipline in right living, so that the (one) who belongs to God may be efficient and equipped for good work of every kind” (2 Tim. 3:16-17, Greek text).