Really loved the chain of reasoning here.
As to the righteousness of this state, consider, that as uncreated righteousness, the righteousness of God is the supreme rule; so all created righteousness, whether of men or angels, has respect to a law as its rule, and is a conformity thereto. A creature can no more be morally independent of God in its actions and powers, than it can be naturally independent of Him. A creature, as a creature, must acknowledge the Creator's will as its supreme law; for as it cannot exist without Him, so it must be but for Him, and according to His will; yet no law obliges, until it is revealed. And hence it follows, that there was a law which man, as a rational creature, was subjected to in his creation; and that this law was revealed to him.
(Thomas Boston, Human Nature in its Fourfold State, pp. 39-40)
