QUESTION 28: THE DIVINE RELATIONS
The divine relations are next to be considered, in four points of
(1) Whether there are real relations in God?
(2) Whether those relations are the divine essence itself, or are
extrinsic to it?
(3) Whether in God there can be several relations distinct from each
(4) The number of these relations.
Article 1: Whether there are real relations in God?
Objection 1: It would seem that there are no real relations in God. For
Boethius says (De Trin. iv), "All possible predicaments used as regards
the Godhead refer to the substance; for nothing can be predicated
relatively." But whatever really exists in God can be predicated of Him.
Therefore no real relation exists in God.
Objection 2: Further, Boethius says (De Trin. iv) that, "Relation in the
Trinity of the Father to the Son, and of both to the Holy Ghost, is the
relation of the same to the same." But a relation of this kind is only a
logical one; for every real relation requires and implies in reality two
terms. Therefore the divine relations are not real relations, but are
formed only by the mind.
Objection 3: Further, the relation of paternity is the relation of a
principle. But to say that God is the principle of creatures does not
import any real relation, but only a logical one. Therefore paternity in
God is not a real relation; while the same applies for the same reason to
the other relations in God.
Objection 4: Further, the divine generation proceeds by way of an intelligible
word. But the relations following upon the operation of the intellect are
logical relations. Therefore paternity and filiation in God, consequent
upon generation, are only logical relations.
On the contrary, The Father is denominated only from paternity; and the
Son only from filiation. Therefore, if no real paternity or filiation
existed in God, it would follow that God is not really Father or Son, but
only in our manner of understanding; and this is the Sabellian heresy.
I answer that, relations exist in God really; in proof whereof we may
consider that in relations alone is found something which is only in the
apprehension and not in reality. This is not found in any other genus;
forasmuch as other genera, as quantity and quality, in their strict and
proper meaning, signify something inherent in a subject. But relation in
its own proper meaning signifies only what refers to another. Such regard
to another exists sometimes in the nature of things, as in those things
which by their own very nature are ordered to each other, and have a
mutual inclination; and such relations are necessarily real relations;
as in a heavy body is found an inclination and order to the centre; and
hence there exists in the heavy body a certain respect in regard to the
centre and the same applies to other things. Sometimes, however, this
regard to another, signified by relation, is to be found only in the
apprehension of reason comparing one thing to another, and this is a
logical relation only; as, for instance, when reason compares man to
animal as the species to the genus. But when something proceeds from a
principle of the same nature, then both the one proceeding and the source
of procession, agree in the same order; and then they have real relations
to each other. Therefore as the divine processions are in the identity of
the same nature, as above explained (Question , Articles ,4), these relations,
according to the divine processions, are necessarily real relations.
Reply to Objection 1: Relationship is not predicated of God according to its
proper and formal meaning, that is to say, in so far as its proper
meaning denotes comparison to that in which relation is inherent, but
only as denoting regard to another. Nevertheless Boethius did not wish to
exclude relation in God; but he wished to show that it was not to be
predicated of Him as regards the mode of inherence in Himself in the
strict meaning of relation; but rather by way of relation to another.
Reply to Objection 2: The relation signified by the term "the same" is a logical
relation only, if in regard to absolutely the same thing; because such a
relation can exist only in a certain order observed by reason as regards
the order of anything to itself, according to some two aspects thereof.
The case is otherwise, however, when things are called the same, not
numerically, but generically or specifically. Thus Boethius likens the
divine relations to a relation of identity, not in every respect, but
only as regards the fact that the substance is not diversified by these
relations, as neither is it by relation of identity.
Reply to Objection 3: As the creature proceeds from God in diversity of nature,
God is outside the order of the whole creation, nor does any relation to
the creature arise from His nature; for He does not produce the creature
by necessity of His nature, but by His intellect and will, as is above
explained (Question , Articles ,4; Question , Article ). Therefore there is no real
relation in God to the creature; whereas in creatures there is a real
relation to God; because creatures are contained under the divine order,
and their very nature entails dependence on God. On the other hand, the
divine processions are in one and the same nature. Hence no parallel
Reply to Objection 4: Relations which result from the mental operation alone in
the objects understood are logical relations only, inasmuch as reason
observes them as existing between two objects perceived by the mind.
Those relations, however, which follow the operation of the intellect,
and which exist between the word intellectually proceeding and the source
whence it proceeds, are not logical relations only, but are real
relations; inasmuch as the intellect and the reason are real things, and
are really related to that which proceeds from them intelligibly; as a
corporeal thing is related to that which proceeds from it corporeally.
Thus paternity and filiation are real relations in God.
Article 2: Whether relation in God is the same as His essence?
Objection 1: It would seem that the divine relation is not the same as the
divine essence. For Augustine says (De Trin. v) that "not all that is
said of God is said of His substance, for we say some things relatively,
as Father in respect of the Son: but such things do not refer to the
substance." Therefore the relation is not the divine essence.
Objection 2: Further, Augustine says (De Trin. vii) that, "every relative
expression is something besides the relation expressed, as master is a
man, and slave is a man." Therefore, if relations exist in God, there
must be something else besides relation in God. This can only be His
essence. Therefore essence differs from relation.
Objection 3: Further, the essence of relation is the being referred to
another, as the Philosopher says (Praedic. v). So if relation is the
divine essence, it follows that the divine essence is essentially itself
a relation to something else; whereas this is repugnant to the perfection
of the divine essence, which is supremely absolute and self-subsisting
(Question , Article ). Therefore relation is not the divine essence.
On the contrary, Everything which is not the divine essence is a
creature. But relation really belongs to God; and if it is not the divine
essence, it is a creature; and it cannot claim the adoration of latria;
contrary to what is sung in the Preface: "Let us adore the distinction of
the Persons, and the equality of their Majesty."
I answer that, It is reported that Gilbert de la Porree erred on this
point, but revoked his error later at the council of Rheims. For he said
that the divine relations are assistant, or externally affixed.
To perceive the error here expressed, we must consider that in each of
the nine genera of accidents there are two points for remark. One is the
nature belonging to each one of them considered as an accident; which
commonly applies to each of them as inherent in a subject, for the
essence of an accident is to inhere. The other point of remark is the
proper nature of each one of these genera. In the genera, apart from that
of "relation," as in quantity and quality, even the true idea of the
genus itself is derived from a respect to the subject; for quantity is
called the measure of substance, and quality is the disposition of
substance. But the true idea of relation is not taken from its respect to
that in which it is, but from its respect to something outside. So if we
consider even in creatures, relations formally as such, in that aspect
they are said to be "assistant," and not intrinsically affixed, for, in
this way, they signify a respect which affects a thing related and tends
from that thing to something else; whereas, if relation is considered as
an accident, it inheres in a subject, and has an accidental existence in
it. Gilbert de la Porree considered relation in the former mode only.
Now whatever has an accidental existence in creatures, when considered
as transferred to God, has a substantial existence; for there is no
accident in God; since all in Him is His essence. So, in so far as
relation has an accidental existence in creatures, relation really
existing in God has the existence of the divine essence in no way
distinct therefrom. But in so far as relation implies respect to
something else, no respect to the essence is signified, but rather to its
Thus it is manifest that relation really existing in God is really the
same as His essence and only differs in its mode of intelligibility; as
in relation is meant that regard to its opposite which is not expressed
in the name of essence. Thus it is clear that in God relation and essence
do not differ from each other, but are one and the same.
Reply to Objection 1: These words of Augustine do not imply that paternity or any
other relation which is in God is not in its very being the same as the
divine essence; but that it is not predicated under the mode of
substance, as existing in Him to Whom it is applied; but as a relation.
So there are said to be two predicaments only in God, since other
predicaments import habitude to that of which they are spoken, both in
their generic and in their specific nature; but nothing that exists in
God can have any relation to that wherein it exists or of whom it is
spoken, except the relation of identity; and this by reason of God's
Reply to Objection 2: As the relation which exists in creatures involves not only
a regard to another, but also something absolute, so the same applies to
God, yet not in the same way. What is contained in the creature above and
beyond what is contained in the meaning of relation, is something else
besides that relation; whereas in God there is no distinction, but both
are one and the same; and this is not perfectly expressed by the word
"relation," as if it were comprehended in the ordinary meaning of that
term. For it was above explained (Question , Article ), in treating of the divine
names, that more is contained in the perfection of the divine essence
than can be signified by any name. Hence it does not follow that there
exists in God anything besides relation in reality; but only in the
various names imposed by us.
Reply to Objection 3: If the divine perfection contained only what is signified
by relative names, it would follow that it is imperfect, being thus
related to something else; as in the same way, if nothing more were
contained in it than what is signified by the word "wisdom," it would not
in that case be a subsistence. But as the perfection of the divine
essence is greater than can be included in any name, it does not follow,
if a relative term or any other name applied to God signify something
imperfect, that the divine essence is in any way imperfect; for the
divine essence comprehends within itself the perfection of every genus
(Question , Article ).
Article 3: Whether the relations in God are really distinguished from each other?
Objection 1: It would seem that the divine relations are not really
distinguished from each other. For things which are identified with the
same, are identified with each other. But every relation in God is really
the same as the divine essence. Therefore the relations are not really
distinguished from each other.
Objection 2: Further, as paternity and filiation are by name distinguished
from the divine essence, so likewise are goodness and power. But this
kind of distinction does not make any real distinction of the divine
goodness and power. Therefore neither does it make any real distinction
of paternity and filiation.
Objection 3: Further, in God there is no real distinction but that of origin.
But one relation does not seem to arise from another. Therefore the
relations are not really distinguished from each other.
On the contrary, Boethius says (De Trin.) that in God "the substance
contains the unity; and relation multiplies the trinity." Therefore, if
the relations were not really distinguished from each other, there would
be no real trinity in God, but only an ideal trinity, which is the error
I answer that, The attributing of anything to another involves the
attribution likewise of whatever is contained in it. So when "man" is
attributed to anyone, a rational nature is likewise attributed to him.
The idea of relation, however, necessarily means regard of one to
another, according as one is relatively opposed to another. So as in God
there is a real relation (Article ), there must also be a real opposition.
The very nature of relative opposition includes distinction. Hence, there
must be real distinction in God, not, indeed, according to that which is
absolute---namely, essence, wherein there is supreme unity and
simplicity---but according to that which is relative.
Reply to Objection 1: According to the Philosopher (Phys. iii), this argument
holds, that whatever things are identified with the same thing are
identified with each other, if the identity be real and logical; as, for
instance, a tunic and a garment; but not if they differ logically. Hence
in the same place he says that although action is the same as motion, and
likewise passion; still it does not follow that action and passion are
the same; because action implies reference as of something "from which"
there is motion in the thing moved; whereas passion implies reference as
of something "which is from" another. Likewise, although paternity, just
as filiation, is really the same as the divine essence; nevertheless
these two in their own proper idea and definitions import opposite
respects. Hence they are distinguished from each other.
Reply to Objection 2: Power and goodness do not import any opposition in their
respective natures; and hence there is no parallel argument.
Reply to Objection 3: Although relations, properly speaking, do not arise or
proceed from each other, nevertheless they are considered as opposed
according to the procession of one from another.
Article 4: Whether in God there are only four real relations---paternity, filiation, spiration, and procession?
Objection 1: It would seem that in God there are not only four real
relations---paternity, filiation, spiration and procession. For it must
be observed that in God there exist the relations of the intelligent
agent to the object understood; and of the one willing to the object
willed; which are real relations not comprised under those above
specified. Therefore there are not only four real relations in God.
Objection 2: Further, real relations in God are understood as coming from the
intelligible procession of the Word. But intelligible relations are
infinitely multiplied, as Avicenna says. Therefore in God there exists an
infinite series of real relations.
Objection 3: Further, ideas in God are eternal (Question , Article ); and are only
distinguished from each other by reason of their regard to things, as
above stated. Therefore in God there are many more eternal relations.
Objection 4: Further, equality, and likeness, and identity are relations: and
they are in God from eternity. Therefore several more relations are
eternal in God than the above named.
Objection 5: Further, it may also contrariwise be said that there are fewer
relations in God than those above named. For, according to the
Philosopher (Phys. iii text 24), "It is the same way from Athens to
Thebes, as from Thebes to Athens." By the same way of reasoning there is
the same relation from the Father to the Son, that of paternity, and from
the Son to the Father, that of filiation; and thus there are not four
relations in God.
I answer that, According to the Philosopher (Metaph. v), every relation
is based either on quantity, as double and half; or on action and
passion, as the doer and the deed, the father and the son, the master and
the servant, and the like. Now as there is no quantity in God, for He is
great without quantity, as Augustine says (De Trin. i, 1) it follows that
a real relation in God can be based only on action. Such relations are
not based on the actions of God according to any extrinsic procession,
forasmuch as the relations of God to creatures are not real in Him
(Question , Article ). Hence, it follows that real relations in God can be
understood only in regard to those actions according to which there are
internal, and not external, processions in God. These processions are two
only, as above explained (Question , Article ), one derived from the action of
the intellect, the procession of the Word; and the other from the action
of the will, the procession of love. In respect of each of these
processions two opposite relations arise; one of which is the relation of
the person proceeding from the principle; the other is the relation of
the principle Himself. The procession of the Word is called generation in
the proper sense of the term, whereby it is applied to living things. Now
the relation of the principle of generation in perfect living beings is
called paternity; and the relation of the one proceeding from the
principle is called filiation. But the procession of Love has no proper
name of its own (Question , Article ); and so neither have the ensuing relations
a proper name of their own. The relation of the principle of this
procession is called spiration; and the relation of the person proceeding
is called procession: although these two names belong to the processions
or origins themselves, and not to the relations.
Reply to Objection 1: In those things in which there is a difference between the
intellect and its object, and the will and its object, there can be a
real relation, both of science to its object, and of the willer to the
object willed. In God, however, the intellect and its object are one and
the same; because by understanding Himself, God understands all other
things; and the same applies to His will and the object that He wills.
Hence it follows that in God these kinds of relations are not real; as
neither is the relation of a thing to itself. Nevertheless, the relation
to the word is a real relation; because the word is understood as
proceeding by an intelligible action; and not as a thing understood. For
when we understand a stone; that which the intellect conceives from the
thing understood, is called the word.
Reply to Objection 2: Intelligible relations in ourselves are infinitely
multiplied, because a man understands a stone by one act, and by another
act understands that he understands the stone, and again by another,
understands that he understands this; thus the acts of understanding are
infinitely multiplied, and consequently also the relations understood.
This does not apply to God, inasmuch as He understands all things by one
Reply to Objection 3: Ideal relations exist as understood by God. Hence it does
not follow from their plurality that there are many relations in God; but
that God knows these many relations.
Reply to Objection 5: The way from one term to another and conversely is the
same; nevertheless the mutual relations are not the same. Hence, we
cannot conclude that the relation of the father to the son is the same as
that of the son to the father; but we could conclude this of something
absolute, if there were such between them.