God is the divine design because he is substance itself and form itself. He is substance because from him come all things that subsist, that came into existence in the past, and that are coming into existence now. He is form because every quality of [these] substances arose and arises from him. Quality comes from no other source than form.
Now, because God is the absolute, the first, and the only substance and form and is also the absolute and only love and the absolute and only wisdom, and because wisdom produces form on the basis of love, and the state and quality of the form depend on its design, it follows that God is the design itself. It also follows that from himself God imposed a design on the universe and on every single thing in it, and the design imposed was absolutely perfect because all that he created was good, as we read in Genesis, the Book of Creation.
(In its own place we will show that evil of every kind and hell itself came into existence after creation.) Now we turn to thoughts that are more accessible to, clearer for, and gentler on the mind.
from True Christianity, Section 53