the branch of sacred theology which is concerned with the defence and interpretation of these divine books must be most excellent and in the highest degree profitable. Now We, who by the help of God, and not without fruit, have by frequent letters and exhortation endeavored to promote other branches of study, which seemed well fitted for advancing the glory of God and contributing to the salvation of souls, have for a long time cherished the desire to give an impulse to the most noble study of the Sacred Scriptures, and to impart to it a direction which is suitable to the needs of the present day. The solicitude of the Apostolic office naturally urges, and even compels Us, not only to desire that this grand source of Catholic revelation should be made more safely and abundantly accessible to the flock of Jesus Christ, but also to prevent it from being in any way violated, on the part either of those who impiously and openly assail the Scriptures, or of those who are led astray into fallacious and imprudent novelties. We are not ignorant, indeed, Venerable Brethren, that there are Catholics not a few, men abounding in talent and learning, who do devote themselves with alacrity to the defence of the Divine Books, and to making them better known and understood. But while giving to these men the commendation which they deserve for their labor and the fruits of it, We cannot but earnestly exhort others also, from whose skill and piety and learning we have a right to expect the very best results, to give themselves to the same most praiseworthy work. It is Our wish and fervent desire to see an increase in the number of approved and unwearying laborers in the cause of Holy Scripture; and more especially that those whom Divine Grace has called to Holy Orders should, day by day, as is most meet, display greater diligence and industry in reading, meditating, and explaining it. Among the reasons for which this study is so worthy of commendation--in addition to its own excellence and to the homage which we owe to God's word--the chief reason of all is the manifold benefit of which it is the source. This we know will flow therefrom on the most certain testimony of the Holy Ghost Himself, who says: "All Scripture, inspired of God, is profitable to teach, to reprove, to correct, to instruct in justice, that the man of God may be perfect, furnished to every good work." That such was the purpose of God in giving the Scriptures to men is shown by the example of Christ our Lord and of His Apostles. He who obtained authority by miracles, merited belief by authority, and by belief drew to Himself the multitude, was accustomed in the exercise of His Divine Mission to appeal to the Scriptures. He uses them at times to prove that He was sent by God, and that He is God. From them He draws arguments for the instruction of His disciples and the confirmation of His doctrine. He vindicates them from the calumnies of objectors. He