individualized precisely because it cannot be received in a subject;
and such a form is God. Hence it does not follow that matter exists in
God.
_______________________

THIRD ARTICLE [I, Q. 3, Art. 3]

Whether God is the Same as His Essence or Nature?

Objection 1: It seems that God is not the same as His essence or
nature. For nothing can be in itself. But the substance or nature of
God--i.e. the Godhead--is said to be in God. Therefore it seems that
God is not the same as His essence or nature.

Obj. 2: Further, the effect is assimilated to its cause; for
every agent produces its like. But in created things the _suppositum_
is not identical with its nature; for a man is not the same as his
humanity. Therefore God is not the same as His Godhead.

_On the contrary,_ It is said of God that He is life itself, and not
only that He is a living thing: "I am the way, the truth, and the
life" (John 14:6). Now the relation between Godhead and God is the same
as the relation between life and a living thing. Therefore God is His
very Godhead.

_I answer that,_ God is the same as His essence or nature. To understand
this, it must be noted that in things composed of matter and form, the
nature or essence must differ from the _suppositum,_ because the
essence or nature connotes only what is included in the definition of
the species; as, humanity connotes all that is included in the