An injustice can never be satisfied, in the sense that, the guilty can be punished until he ceased to be guilty, and became innocent.
For example: one breaks the law by speeding then pays the fine for the crime; that one does not cease from being guilty for paying the fine, but, paying the fine only satisfies the law.
Therefore, punishment for a crime against the law is not for the purpose of rehabilitation, but to satisfy the law.
The law is not founded in mere randomness, but in the Personhood of God or on the foundation of reality.
The difference between the letter of the law and the spirit of the law is that the letter relates to the outward action; the spirit relates to the motive or intention of the heart and from which the act should proceed.
The spirit of the law requires impartial goodwill or benevolence, and is all expressed in one word--love.
The letter of the law requires strict adherence to every precept, it is all expressed in one word--obey.
An example, the letter of the law says, do not commit murder! But the spirit of the law says anyone who is angry with his brother without cause shall be liable to Judgment. The spirit requires that certain conditions to be examined in their proper place.
The letter of the law is unyielding and sentences guilty all violators of its precepts, without regard to purpose. Just as the speed limit is 55 mph and one exceeds the limit, the law says, guilty. The spirit of the law sees the purpose of the excess speed for an emergency and says; keep speeding until purpose is met.
Furthermore, when speeding for the purpose of an emergency, the spirit of the law is not broken, but fulfilled
The purpose of the law is to teach one of the character of the Lawgiver also to guide and to guard us while directing us to mercy of the Lawgiver, Galatians 3:23-24
There is a lot to say on the account of our righteousness that is imputed to us.
For man to be legally pronounced just, is not impossible, however, there is but one ground of the justification of man, that is by obedience to the law.
I repeat, there can be no justification in a legal sense, but upon the ground of perfect, and uninterrupted obedience to law.
Jesus is the only Man that has accomplished this, He performed the law perfectly, therefore, while in His earthly ministry, He would have had a perfect conscience from sin according to Hebrews 9:9
It is true that what a man does through another he does himself, however, there is a theological theory that the law regards Christ