(b) To induce a person to write is not to take on oneself the responsibility of that writing, more especially it is not to become the author of that writing. If God can claim the Scripture as His own work, it is because He has brought even the intellect of the inspired writer under His command. However, we must not represent the Inspirer as putting a ready-made book in the mind of the inspired person. Nor has He necessarily to reveal the contents of the work to be produced. No matter where the knowledge of the writer on this point comes from, whether it be acquired naturally or due to Divine revelation, inspiration has not essentially for its object to teach something new to the sacred writer, but to render him capable of writing with Divine authority. Thus the author of the Acts of the Apostles narrates events in which he himself took part, or which were related to him. It is highly probable that most of the sayings of the Book of Proverbs were familiar to the sages of the East, before being set down in an inspired writing. God, inasmuch as he is the principal cause, when he inspires a writer, subordinates all that writer’s cognitive faculties so as to make him accomplish the different actions which would be naturally gone through by a man who, first of all, has the design of composing a book, then gets together his materials, subjects them to a critical examination, arranges them, makes them enter into his plan, and finally brands them with the mark of his personality — i.e. his own peculiar style. The grace of inspiration does not exempt the writer from personal effort, nor does it insure the perfection of his work from an artistic point of view. The author of the Second Book of Machabees and St. Luke tell the reader of the pains they took to document their work (2 Maccabees 2:24-33; Luke 1:1-4). The imperfections of the work are to be attributed to the instrument. God can, of course, prepare this instrument beforehand, but, at the time of using it, He does not ordinarily make any change in its conditions. When the Creator applies His power to the faculties of a creature outside of the ordinary way, he does so in a manner in keeping with the natural activity of these faculties. Now, in all languages recourse is had to the comparison of light to explain the nature of the human intelligence. That is why St. Thomas (II-II:171:2 and II-II:174:2 ad 3um) gives the name of light or illumination to the intellectual motion communicated by God to the sacred writer. After him, then, we may say that this motion is a peculiar supernatural participation of the Divine light, in virtue of which the writer conceives exactly the work that the Holy Ghost wants him to write. Thanks to this help given to his intellect, the inspired writer judges, with a certitude of Divine order, not only of the opportuneness of the book to be written, but also of the truth of the details and of the whole. However, all theologians do not analyse exactly in the same manner the influence of this light of inspiration.