The subsistence of the Good implies that of choice and will, because
He could not exist without these two. But (in the Divinity) (these
three, choice, being and will) do not form a multiplicity; they must
be considered as having fused. Since He is the author of will, He must
evidently also be the author of what is called self-direction ("being
for oneself"). This leads us to say that He made Himself; for, since He
is the author of will, and as this will is more or less His work, and
as it is identical with His essence, (we may say that) He gave himself
the form of (hypostatic) existence. Not by chance therefore is He what
He is; He is what He is because He wished to be such.