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SEVENTH ARTICLE [I, Q. 39, Art. 7]

Whether the Essential Names Should Be Appropriated to the Persons?

Objection 1: It would seem that the essential names should not be
appropriated to the persons. For whatever might verge on error in
faith should be avoided in the treatment of divine things; for, as
Jerome says, "careless words involve risk of heresy" [*In substance
Ep. lvii.]. But to appropriate to any one person the names which are
common to the three persons, may verge on error in faith; for it may
be supposed either that such belong only to the person to whom they
are appropriated or that they belong to Him in a fuller degree than
to the others. Therefore the essential attributes should not be
appropriated to the persons.

Obj. 2: Further, the essential attributes expressed in the abstract
signify by mode of form. But one person is not as a form to another;
since a form is not distinguished in subject from that of which it is
the form. Therefore the essential attributes, especially when
expressed in the abstract, are not to be appropriated to the persons.

Obj. 3: Further, property is prior to the appropriated, for property
is included in the idea of the appropriated. But the essential
attributes, in our way of understanding, are prior to the persons; as
what is common is prior to what is proper. Therefore the essential
attributes are not to be appropriated to the persons.

_On the contrary,_ the Apostle says: "Christ the power of God and the
wisdom of God" (1 Cor. 1:24).

_I answer that,_ For the manifestation of our faith it is fitting
that the essential attributes should be appropriated to the persons.
For although the trinity of persons cannot be proved by
demonstration, as was above expounded (Q. 32, A. 1), nevertheless it
is fitting that it be declared by things which are more known to us.
Now the essential attributes of God are more clear to us from the
standpoint of reason than the personal properties; because we can
derive certain knowledge of the essential attributes from creatures
which are sources of knowledge to us, such as we cannot obtain
regarding the personal properties, as was above explained (Q. 32, A.
1). As, therefore, we make use of the likeness of the trace or image
found in creatures for the manifestation of the divine persons, so
also in the same manner do we make use of the essential attributes.
And such a manifestation of the divine persons by the use of the
essential attribu