In his book, The God Who Justifies, James White includes a stellar (rather lengthy) quotation from James Buchanan:
The best preparation for the study of this doctrine [justification] is neither great intellectual ability, nor much scholastic learning, but a conscience impressed with a sense of our actual condition as sinners in the sight of god. A deep conviction of sin is the one thing needful in such an inquiry, a conviction of the fact of sin, as an awful reality in our own personal experience, of the power of sin, as an inveterate evil cleaving to us continually, and having its roots deep in the innermost recesses of our hearts, and of the guilt of sin, past as well as present, as an offence against God, which, once committed, can never cease to be true of us individually, and which, however, He may be pleased to deal with it, has deserved His wrath and righteous condemnation. Without some such conviction of sin, we may speculate on this, as on any other, part of divine truth, and bring all the resources of our intellect and learning to bear upon it, but can have no suitable sense of our actual danger, and no serious desire for deliverance from it. To study the subject with advantage, we must have a heartfelt interest in it, as one that bears directly on the salvation of our own should; and this interest can only be felt in proportion as we realize our guilt, and misery, and danger, as transgressors of God's Law. The Law is still, as it was to the Jewish Church, "a schoolmaster to bring us to Christ, that we may be justified by faith"; and the Law must be applied to the conscience, so as to quicken and arouse it, before we can feel our need of salvation, or make any serious effort to attain it. It is the convinced, and not the careless, sinner, who alone will lay to heart, with some sense of its real meaning and momentous importance, the solemn question: "How shall a man be just with God?" But more than this. As, without some heartfelt conviction of sin, we could have no feeling of personal interest in the doctrine of Justification, such as is necessary to command our serious attention in the study of it, so we should be scarcely capable of understanding, in their full scriptural meaning, the terms in which it is proposed to us, or the testimonies by which alone it can be established. The doctrine of Salvation, which is taught by the Gospel, presupposes the doctrine of Sin, which is taught by the Law; and the two together constitute the sum and substance of God's revealed truth. They are distinct, and even different, from each other; but they are so related that, while there may be some knowledge of sin without any knowledge of salvation there can be no knowledge of salvation without some knowledge of sin. As this is true of the general doctrine of Salvation, which includes deliverance from the power, as well as from the punishment of sin, so it is equally true of each of its constituent parts, the special doctrines of Justification and Sanctification, with this only difference, that, in the one case, we must have some knowledge of sin, in its legal aspect, as guilt already incurred, in the other, of sin, in its spiritual aspect as an inveterate inherent depravity.





