Men's works also are naturally perishable and mutable and subject to every kind of alteration. But since God is eternal, it follows that of such sort are his ordinances also. And since they are such, they are either the natures of things or are accordant with the nature of things. For how could nature be at variance with the ordinance of God? How could it fall out of harmony therewith?
Against the Galilaeans (c. 362)