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Whether the Angels Can Change the Will of Man?

Objection 1: It would seem that the angels can change the will of
man. For, upon the text, "Who maketh His angels spirits and His
ministers a flame of fire" (Heb. 1:7), the gloss notes that "they are
fire, as being spiritually fervent, and as burning away our vices."
This could not be, however, unless they changed the will. Therefore
the angels can change the will.

Obj. 2: Further, Bede says (Super Matth. xv, 11), that, "the devil
does not send wicked thoughts, but kindles them." Damascene, however,
says that he also sends them; for he remarks that "every malicious
act and unclean passion is contrived by the demons and put into men"
(De Fide Orth. ii, 4); in like manner also the good angels introduce
and kindle good thoughts. But this could only be if they changed the
will. Therefore the will is changed by them.

Obj. 3: Further, the angel, as above explained, enlightens the human
intellect by means of the phantasms. But as the imagination which
serves the intellect can be changed by an angel, so can the sensitive
appetite which serves the will, because it also is a faculty using a
corporeal organ. Therefore as the angel enlightens the mind, so can
he change the will.

_On the contrary,_ To change the will belongs to God alone, according
to Prov. 21:1: "The heart of the king is in the hand of the Lord,
whithersoever He will He shall turn it."

_I answer that,_ The will can be changed in two ways. First, from
within; in which way, since the movement of the will is nothing but
the inclination of the will to the thing willed, God alone can thus
change the will, because He gives the power of such an inclination to
the intellectual nature. For as the natural inclination is from God
alone Who gives the nature, so the inclination of the will is from
God alone, Who causes the will.

Secondly, the will is moved from without. As regards an angel, this
can be only in one way--by the good apprehended by the intellect.
Hence in as far as anyone may be the cause why anything be apprehended
as an appetible good, so far does he move the will. In this way also
God alone can move the will efficaciously; but an angel and man move
the will by way of persuasion, as above explained (Q. 106, A. 2).

In addition to this mode the human will can be moved from without in
another way; namely, by the passion residing in the sensitive
appetite: thus by concupiscence or anger the will is i