Question 108 — The Angelic Degrees of Hierarchies and Orders

We next consider the degrees of the angels in their hierarchies and orders; for it was said above (Q. 106, A. 3), that the superior angels enlighten the inferior angels; and not conversely.

Under this head there are eight points of inquiry:

(1) Whether all the angels belong to one hierarchy?

• (2) Whether in one hierarchy there is only one order?
• (3) Whether in one order there are many angels?
• (4) Whether the distinction of hierarchies and orders is natural?
• (5) Of the names and properties of each order.
• (6) Of the comparison of the orders to one another.
• (7) Whether the orders will outlast the Day of Judgment?
• (8) Whether men are taken up into the angelic orders?