SECOND ARTICLE [II-II, Q. 90, Art. 2]

Whether It Is Lawful to Adjure the Demons?

Objection 1: It would seem unlawful to adjure the demons. Origen says

(Tract. xxxv, super Matth.): "To adjure the demons is not accordance

with the power given by our Saviour: for this is a Jewish practice."

Now rather than imitate the rites of the Jews, we should use the

power given by Christ. Therefore it is not lawful to adjure the

demons.

Obj. 2: Further, many make use of necromantic incantations when

invoking the demons by something Divine: and this is an adjuration.

Therefore, if it be lawful to adjure the demons, it is lawful to make

use of necromantic incantations, which is evidently false. Therefore

the antecedent is false also.

Obj. 3: Further, whoever adjures a person, by that very fact

associates himself with him. Now it is not lawful to have fellowship

with the demons, according to 1 Cor. 10:20, "I would not that you

should be made partakers with devils." Therefore it is not lawful to

adjure the demons.

_On the contrary,_ It is written (Mk. 16:17): "In My name they shall

cast out devils." Now to induce anyone to do a certain thing for the

sake of God's name is to adjure. Therefore it is lawful to adjure the

demons.

_I answer that,_ As stated in the preceding article, there are two

ways of adjuring: one by way of prayer or inducement through

reverence of some holy thing: the other by way of compulsion. In the

first way it is not lawful to adjure the demons because such a way

seems to savor of benevolence or friendship, which it is unlawful to

bear towards the demons. As to the second kind of adjuration, which

is by compulsion, we may lawfully use it for some purposes, and not

for others. For during the course of this life the demons are our

adversaries: and their actions are not subject to our disposal but to

that of God and the holy angels, because, as Augustine says (De Trin.

iii, 4), "the rebel spirit is ruled by the just spirit." Accordingly

we may repulse the demons, as being our enemies, by adjuring them

through the power of God's name, lest they do us harm of soul or

body, in accord with the Divine power given by Christ, as recorded by

Luke 10:19: "Behold, I have given you power to tread upon serpents

and scorpions, and upon all the power of the enemy: and nothing shall

hurt you."

It is not, however, lawful to adjure them for the purpose of learning

something from them, or of obtaining something through them, for this

would amount to holding fellowship with them: except perhaps when

certain holy men, by special instinct or Divine revelation, make use

of the demons' actions in order to obtain certain results: thus we

read of the Blessed James [*the Greater; cf. Apocrypha, N.T., Hist.

Certam. Apost. vi, 19] that he caused Hermogenes to be brought to

him, by the instrumentality of the demons.

Reply Obj. 1: Origen is speaking of adjuration made, not

authoritatively by way of compulsion, but rather by way of a friendly

appeal.

Reply Obj. 2: Necromancers adjure and invoke the demons in order to

obtain or learn something from them: and this is unlawful, as stated

above. Wherefore Chrysostom, commenting on our Lord's words to the

unclean spirit (Mk. 1:25), "Speak no more, and go out of the man,"

says: "A salutary teaching is given us here, lest we believe the

demons, however much they speak the truth."

Reply Obj. 3: This argument considers the adjuration whereby the

demon's help is besought in doing or learning something: for this

savors of fellowship with them. On the other hand, to repulse the

demons by adjuring them, is to sever oneself from their fellowship.

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Summa Theologica, Part II-II (Secunda Secundae) Translated by Fathers of the English Dominican Province · 第 602 / 1128 题