Nevin’s intro to Shaff’s The Principle of Protestantism
This much however is certain at the same time. The work will not be regarded by Puseyites and papists as a plea in their favor. Rather, if I am not much mistaken, it will be felt by them, so far as it may come under their observation, to be one of the most weighty and effective arguments they have yet been called to encounter in this country in opposition to their cause. For it is not to be disguised that a great deal of the war which is now carried on in this direction is as little adapted to make any impression on the enemy as a battery of popguns in continual fire. instead of being alarmed or troubled on its account, the enemy is no doubt pleased with it at heart. Nothing can be more vain than to imagine that a blind and indiscriminate warfare here can lead to any true and lasting advantage. Not with circumstances and accidents simply must the controversy grapple, but with principles in their inmost life, to reach any result. The present argument accordingly, in throwing itself back upon the true principle of Protestantism, with a full acknowledgment of the difficulties that surround it, while proper pains are taken to put them out of the way, may be said to occupy the only ground on which any effectual stand can be made against the claims of Rome.
To contend successfully with any error, it is all-important that we should understand properly and acknowledge fairly the truth in which it finds its life. The polemic, who assails such a system as popery or Puseyism with the assumption that its pretensions are built upon sheer wind, shows himself utterly unfit for his work and must necessarily betray more or less the cause he has undertaken to defend. All error of this sort involves truth, apprehended in a one-sided and extreme way, with the sacrifice of truth in the opposite direction. Hence a purely negative opposition to it, bent simply on the destruction of the system as a whole, must itself also become inevitably one-sided and false, and can only serve so far to justify and sustain what it labors to overthrow. Romanism includes generally some fast truth in every one of its vast errors; and no one is prepared to make war upon the error, who has not felt, in his inmost soul, the authority of its imprisoned truth, and who is not concerned to rescue and save this, while the prison itself is torn to the ground.
In this view, no respect is due to an infidel or godless zeal, when it may happen to be turned in this direction; and that must be counted always a spurious religious zeal, which can suffer itself to be drawn into communion with such an irreligious element simply because for the moment it has become excited against Rome. It is greatly to be feared that the spirit into which some are betrayed in this way is unhallowed and profane, even where they take to themselves the credit of the most active zeal for the glory of God. so with regard to Puseyism. Nothing can well be more shallow than the convenient imagination that the system is simply a religious monstrosity, engrafted on the body of the church from without, and calling only for a wholesale amputation to effect a cure. Such a supposition is contradicted, to every intelligent mind, by the history of the system itself. No new phase of religion could so spread and prevail as this has done, within so short a period of time, if it did not embody in itself, along with all its errors, the moving force of some mighty truth, whose rights needed to be asserted, and the want of which had come to be felt in the living consciousness of the church, vastly further than it was clearly understood. If the evils against which the system protests were purely imaginary, it could never have acquired so solid a character itself, as it has done in fact. Most assuredly the case is one that calls for something more than a merely negative and destructive opposition. Only by acknowledging and honoring that which is true and good in the movement is it possible to come to any right issue with it so far as it is false. The truth which it includes must be reconciled with the truth it rejects, in a position more advanced that its own, before it can be said to be fairly overcome.