25 But concerning these things that I have written for you, my beloved, namely, concerning that which is written in Daniel, I have not brought them to an end, but (have stopped) short of the end. And if any man dispute about them, say thus to him, that these words are not concluded, because the words of God are infinite, nor will they be concluded. For the foolish man says, “Here unto (these) words reach.” And again, it is not possible to add to them or to diminish from them. For the riches of God cannot be computed or limited.
For if you take away water from the sea, the deficiency will be imperceptible. And if you remove sand from the sea-shore, its measure will not be diminished. And if you count the stars of heaven, you will not arrive at the sum of them. And if you kindle fire from a burning, it will not a whit be lessened. And if you receive of the Spirit of Christ, Christ will not a whit be diminished. And if Christ dwell in you, yet He will not be completed in you. And if the sun enter the windows of your house, yet the sun in its entirety will not come to you.
And all these things that I have enumerated for you were created by the word of God. Therefore know that, as concerning the word of God no man has reached or will reach its end. Therefore, have you no disputation about these things, but say:— “These things are so. That is enough.” But hear these things from me, and also enquire about them of our brethren, children of our faith. But whosoever shall mock at the words of his brother, even if he say, “mine are wise,” yet hearken not to his words.
And concerning what I wrote to you about these forces that are being stirred up to war, it is not as though anything has been revealed to me that I have made known these things to you, but attend to the words at the head of the letter:— Every one who exalts himself shall be humbled. For even if the forces shall go up and conquer, yet know that it is a chastisement of God; and though they conquer, they shall be condemned in a righteous judgment. But yet be assured of this, that the beast shall be slain at its (appointed) time. But, my brother, be earnest at this time in imploring mercy, that there may be peace upon the people of God.
Source: Demonstrations (New Advent)