arily
all things, belongs properly to the causality of the supreme cause.
Therefore no secondary cause can produce anything, unless there is
presupposed in the thing produced something that is caused by a
higher cause. But creation is the production of a thing in its entire
substance, nothing being presupposed either uncreated or created.
Hence it remains that nothing can create except God alone, Who is the
first cause. Therefore, in order to show that all bodies were created
immediately by God, Moses said: "In the beginning God created heaven
and earth."

Reply Obj. 1: In the production of things an order exists, but not
such that one creature is created by another, for that is impossible;
but rather such that by the Divine wisdom diverse grades are
constituted in creatures.

Reply Obj. 2: God Himself, though one, has knowledge of many and
different things without detriment to the simplicity of His nature,
as has been shown above (Q. 15, A. 2); so that by His wisdom He is
the cause of diverse things as known by Him, even as an artificer,
by apprehending diverse forms, produces diverse works of art.

Reply Obj. 3: The amount of the power of an agent is measured not
only by the thing made, but also by the manner of making it; for one
and the same thing is made in one way by a higher power, in another
by a lower. But the production of finite things, where nothing is
presupposed as existing, is the work of infinite power, and, as
such, can belong to no creature.
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FOURTH ARTICLE [I, Q. 65, Art. 4]

Whether the Forms of Bodies Are from the Angels?

Objection 1: It would seem that the forms of bodies come from the
angels. For Boethius says (De Trin. i): "From forms that are without
matter come the forms that are in matter." But forms that are without
matter are spiritual substances, and forms that are in matter are the
forms of bodies. Therefore, the forms of bodies are from spiritual
substances.

Obj. 2: Further, all that is such by participation is reduced to that
which is such by its essence. But spiritual substances are forms
essentially, whereas corporeal creatures have forms by participation.
Therefore the forms of corporeal things are derived from spiritual
substances.

Obj. 3: Further, spiritual substances have more power of causation
than the heavenly bodies. But the heavenly bodies give form to things
here below, for which reason they are said to cause generation and
corruption.