HKB
Reply Obj. 2: The nearness to God designated by the name of the "Thrones," belongs also to the "Cherubim" and "Seraphim," and in a more excellent way, as above explained.
Reply Obj. 3: As above explained (Q. 27, A. 3), knowledge takes place accordingly as the thing known is in the knower; but love as the lover is united to the object loved. Now higher things are in a nobler way in themselves than in lower things; whereas lower things are in higher things in a nobler way than they are in themselves. Therefore to know lower things is better than to love them; and to love the higher things, God above all, is better than to know them.
Reply Obj. 4: A careful comparison will show that little or no difference exists in reality between the dispositions of the orders according to Dionysius and Gregory. For Gregory expounds the name "Principalities" from their "presiding over good spirits," which also agrees with the "Virtues" accordingly as this name expressed a certain strength, giving efficacy to the inferior spirits in the execution of the Divine ministrations. Again, according to Gregory, the "Virtues" seem to be the same as "Principalities" of Dionysius. For to work miracles holds the first place in the Divine ministrations; since thereby the way is prepared for the announcements of the "Archangels" and the "Angels."
SEVENTH ARTICLE [I, Q. 108, Art. 7]
Whether the Orders Will Outlast the Day of Judgment?
Objection 1: It would seem that the orders of angels will not outlast the Day of Judgment. For the Apostle says (1 Cor. 15:24), that Christ will "bring to naught all principality and power, when He shall have delivered up the kingdom to God and the Father," and this will be in the final consummation. Therefore for the same reason all others will be abolished in that state.
Obj. 2: Further, to the office of the angelic orders it belongs to cleanse, enlighten, and perfect. But after the Day of Judgment one angel will not cleanse, enlighten, or perfect another, because they will not advance any more in knowledge. Therefore the angelic orders would remain for no purpose.
Obj. 3: Further, the Apostle says of the angels (Heb. 1:14), that "they are all ministering spirits, sent to minister to them who shall receive the inheritance of salvation"; whence it appears that the angelic offices are ordered for the purpose of leading men to salvation. But all the elect are in pursuit of salvation until the Day of Judgment. Therefore the angelic offices and orders will not outlast the Day of Judgment.
On the contrary, It is written (Judges 5:20): "Stars remaining in their order and courses," which is applied to the angels. Therefore the angels will ever remain in their orders.
I answer that, In the angelic orders we may consider two things; the distinction of grades, and the execution of their offices. The distinction of grades among the angels takes place according to the difference of grace and nature, as above explained (A. 4); and these differences will ever remain in the angels; for these differences of natures cannot be taken from them unless they themselves be corrupted. The difference of glory will also ever remain in them according to the difference of preceding merit. As to the execution of the angelic offices, it will to a certain degree remain after the Day of Judgment, and to a certain degree will cease. It will cease accordingly as their offices are directed towards leading others to their end; but it will remain, accordingly as it agrees with the attainment of the end. Thus also the various ranks of soldiers have different duties to perform in battle and in triumph.