he angels
we consider the proneness to sin, it seems that the higher angels
were less likely to sin than the lower. On this account Damascene
says (De Fide Orth. ii), that the highest of those who sinned was set
over the terrestrial order. This opinion seems to agree with the view
of the Platonists, which Augustine quotes (De Civ. Dei vii, 6, 7; x,
9, 10, 11). For they said that all the gods were good; whereas some
of the demons were good, and some bad; naming as 'gods' the
intellectual substances which are above the lunar sphere, and calling
by the name of "demons" the intellectual substances which are beneath
it, yet higher than men in the order of nature. Nor is this opinion
to be rejected as contrary to faith; because the whole corporeal
creation is governed by God through the angels, as Augustine says (De
Trin. iii, 4,5). Consequently there is nothing to prevent us from
saying that the lower angels were divinely set aside for presiding
over the lower bodies, the higher over the higher bodies; and the
highest to stand before God. And in this sense Damascene says (De
Fide Orth. ii) that they who fell were of the lower grade of angels;
yet in that order some of them remained good.

But if the motive for sinning be considered, we find that it existed
in the higher angels more than in the lower. For, as has been said
(A. 2), the demons' sin was pride; and the motive of pride is
excellence, which was greater in the higher spirits. Hence Gregory
says that he who sinned was the very highest of all. This seems to be
the more probable view: because the angels' sin did not come of any
proneness, but of free choice alone. Consequently that argument seems
to have the more weight which is drawn from the motive in sinning. Yet
this must not be prejudicial to the other view; because there might be
some motive for sinning in him also who was the chief of the lower
angels.

Reply Obj. 1: Cherubim is interpreted "fulness of knowledge," while
"Seraphim" means "those who are on fire," or "who set on fire."
Consequently Cherubim is derived from knowledge; which is compatible
with mortal sin; but Seraphim is derived from the heat of charity,
which is incompatible with mortal sin. Therefore the first angel who
sinned is called, not a Seraph, but a Cherub.

Reply Obj. 2: The Divine intention is not frustrated either in those
who sin, or in those who are saved; for God knows beforehand the end
of both; and He procures glory from both, s