46 Strive, then, Venerable Brethren, to bring home to your clerics and priests these teachings of the Sainted Commentator. You have to remind them constantly of the demands made by their divine vocation if they would be worthy of it: "The lips of the priest shall keep knowledge, and men shall ask the Law at his mouth, for he is the Angel of the Lord of hosts" ( Mal . 2:7). They must realize, then, that they cannot neglect study of the Bible, and that this can only be undertaken along the lines laid down by Leo XIII in his Encyclical Providentissimus Deus . They cannot do this better than by frequenting the Biblical Institute established by our predecessor, Pius X, in accordance with the wishes of Leo XIII. As the experience of the past ten years has shown, it has proved a great gain to the Church. Not all, however, can avail themselves of this. It will be well, then, Venerable Brethren, that picked men, both of the secular and regular clergy, should come to Rome for Biblical study. All will not come with the same object. Some, in accordance with the real purpose of the Institute, will so devote themselves to Biblical study that "afterwards, both in private and in public, whether by writing or by teaching, whether as professors in Catholic schools or by writing in defense of Catholic truth, they may be able worthily to uphold the cause of Biblical study.<<<<<<<<<<" Others, however, already priests, will obtain here a wider knowledge of the Bible than they were able to acquire during their theological course; they will gain, too, an acquaintance with the great commentators and with Biblical history and geography. Such knowledge will avail them much in their ministry; they will be "instructed to every good work."
Source: Spiritus Paraclitus (Vatican.va)