What Can We Learn From the Law?

From the knowledge of God, furnished by the Law, we learn that God is our Father and Ruler. Righteousness is pleasing, iniquity is an abomination in his sight. Hence, how weak soever we may be, our duty is to cultivate the one, and shun the other.

Taken from 2.8.2,

“It is now easy to understand the doctrine of the law—viz. that God, as our Creator, is entitled to be regarded by us as a Father and Master, and should, accordingly, receive from us fear, love, reverence, and glory; nay, that we are not our own, to follow whatever course passion dictates, but are bound to obey him implicitly, and to acquiesce entirely in his good pleasure. Again, the Law teaches, that justice and rectitude are a delight, injustice an abomination to him, and, therefore, as we would not with impious ingratitude revolt from our Maker, our whole life must be spent in the cultivation of righteousness. For if we manifest becoming reverence only when we prefer his will to our own, it follows, that the only legitimate service to him is the practice of justice, purity, and holiness. Nor can we plead as an excuse, that we want the power, and, like debtors, whose means are exhausted, are unable to pay. We cannot be permitted to measure the glory of God by our ability; whatever we may be, he ever remains like himself, the friend of righteousness, the enemy of unrighteousness, and whatever his demands from us may be, as he can only require what is right, we are necessarily under a natural obligation to obey. Our inability to do so is our own fault. If lust, in which sin has its dominion, so enthrals us, that we are not free to obey our Father, there is no ground for pleading necessity as a defence, since this evil necessity is within, and must be imputed to ourselves.”