Justice has always been understood as the virtue that gives each one what is due, and Augustine completed his sense including God in this operation, demonstrating that it is also necessary to give to God what belongs to God. Divine justice demands love for him and for his next one, but man is unable to obey these norms, because when disobeyed God in the Fall, he inherited ignorance and weakness, that prevent you from doing good. God then provided an escape, sent Jesus to pay the price for human sin, and imputed his justice for whom that receive him. He becomes able to do good through divine grace, he lives for God, no longer for himself, his soul is resurrected in the first resurrection, he becomes a citizen of the City of God, and will liv...