True wisdom will destroy the false; and although preaching about the cross is foolishness, yet Paul speaks wisdom among the mature.
He does not speak the wisdom of this world, nor of the princes of this world, who pass away; but wisdom of God which was hidden in a mystery, and which God predestined from the beginning.
The wisdom of God is Christ. For Christ is the power of God and the wisdom of God.
This wisdom was hidden in a mystery, in which all the treasures of wisdom and knowledge were hidden, and he who was hidden in the mystery was predestined from the beginning.
He was predestined and prefigured in the Law and the Prophets. That is why the Prophets were also called seers: for they saw him whom the rest did not see.
Abraham saw his day and rejoiced. The heavens were opened to Ezekiel on behalf of a sinful people.
Open my eyes, said David, so that I may gaze at the wonders of your law.
For the law is spiritual and needs to be revealed to be understood, and so that we may contemplate the glory of God when his face is revealed.
In the Apocalypse there is shown a book sealed with seven seals. If you give it to a literate man to read, he will tell you: I cannot, because it is sealed.
How many people today think they are literate, and are in possession of a sealed book which they cannot open unless he unlocks it who holds the key of David, and when he opens it no one can shut it, and when he shuts it no one can open it?
In the Acts of the Apostles there is a holy eunuch who was reading Isaiah, and when Philip asked him: Do you really understand what you are reading?
[...] He loved the law and divine knowledge…yet all the time that he was holding the book, ruminating on the Lord’s words…he did not know whom he was unwittingly revering in the book. Then Philip came and showed him Jesus, who lay enclosed in the text in secret.
[...] I have touched briefly on these matters, to make you understand that you cannot enter upon the holy Scriptures without someone to go before you and show you the way.
I beg you, dearest brother, to live in the midst of these things, meditate on them, know nothing else, look for nothing – does that not seem to you to be a dwelling-place in the heavenly kingdom already here on earth?
Jerome (347-420): Ep. LIII ad Paulinum (PL 22:544-549) from the Monastic Office of Vigils for Thursday in the 29th week of Ordinary Time.