But, along with the principle which should rule the history of Christianity was one which should rule its doctrine. The grand idea of Christianity was the idea of grace, pardon, amnesty, and the gift of eternal life. This idea supposed in man an estrangement from God, and an impossibility on his part to reenter into communion with a Being of infinite holiness. The opposition between true and false doctrine cannot, it is true, be entirely summed up in the question of salvation by faith, and salvation by works. Still it is its most prominent feature, or rather, salvation considered as coming from man is the creating principle of all error and all abuse. The excesses produced by this fundamental error led to the Reformation, and the profession of a contrary principle achieved it. This feature must stand prominently out in an introduction to the history of the Reformation. Salvation by grace, then, is the second characteristic which essentially distinguished the religion of God from all human religions. What had become of it? Had the Church kept this great and primordial idea as a precious deposit? Let us follow its history.

The inhabitants of Jerusalem, Asia, Greece, and Rome, in the days of the first emperors, heard the glad tidings, "By grace are ye saved through faith—it is the gift of God." (Ephes., ii, 8.) At this voice of peace—at this gospel—at this powerful word—many guilty souls believing were brought near to Him who is the source of peace, and numerous Christian churches were formed in the midst of the corrupt generation then existing.

But a great misapprehension soon arose as to the nature of saving faith. Faith, according to St. Paul, is the means by which the whole being of the believer—his intellect, his heart, and his will—enter into possession of the salvation which the incarnation of the Son of God has purchased for him. Jesus Christ is apprehended by faith, and thenceforth becomes every thing for man, and in man. He imparts a divine life to human nature; and man thus renewed, disengaged from the power of selfishness and sin, has new affections, and does new works. Faith (says Theology, in order to express these ideas) is the subjective appropriation of the objective work of Christ. If faith is not an appropriation of salvation, it is nothing; the whole Christian economy is disturbed, the sources of new life are sealed up, and Christianity is overturned at its base.

Such was the actual result. The practical view being gradually forgotten, faith soon became nothing more than what it still is to many—an act of the understanding—a simple submission to superior authority.

This first error necessarily led to a second. Faith being stripped of its practical character, could not possibly be said to save alone. Works no longer coming after it, behoved to be placed beside it, and the doctrine that man is justified by faith and by works gained a footing in the Church. To the Christian unity, which includes under the same principle justification and works, grace and law, doctrine and duty, succeeded the sad duality, which makes religion and morality to be quite distinct,—a fatal error, which separates things that cannot live unless united, and which, putting the soul on one side, and the body on the other, causes death. The words of the apostle, echoing through all ages, are, "Having begun in the Spirit, are ye now made perfect by the flesh?" (Gal., iii, 3.)

Another great error arose to disturb the doctrine of grace. This was Pelagianism. Pelagius maintained that human nature is not fallen—that there is no hereditary corruption—and that man, having received the power of doing good, has only to will it in order to perform it.[22] If goodness consists in certain external actions, Pelagius is right. But if we look to the motives from which those external actions proceed, we find in every part of man selfishness, forgetfulness of God, pollution, and powerlessness. The Pelagian doctrine, driven back from the Church by Augustine, when it advanced with open front, soon presented a side view in the shape of semi-Pelagianism, and under the mask of Augustinian formulæ. This heresy spread over Christendom with astonishing rapidity. The danger of the system appeared, above all, in this—by placing goodness, not within, but without, it caused a great value to be set on external works, on legal observances, and acts of penance. The more of these men did, the holier they were; they won heaven by them, and individuals were soon seen (a very astonishing circumstance, certainly) who went farther in holiness than was required. Pelagianism, at the same time that it corrupted doctrine, strengthened the hierarchy; with the same hand with which it lowered grace it elevated the Church; for grace is of God, and the Church is of man.

The deeper our conviction that the whole world is guilty before God, the more will we cleave to Jesus Christ as the only source of grace. With such a view, how can we place the Church on a level with him, since she is nothing but the whole body of persons subject to the same natural misery? But, so soon as we attribute to man a holiness of his own, all is changed, and ecclesiastics and monks become the most natural medium of receiving the grace of God. This was what happened after Pelagius. Salvation, taken out of the hands of God, fell into the hands of priests, who put themselves in the Lord's place. Souls thirsting for pardon behoved no longer to look towards heaven, but towards the Church, and, above all, towards its pretended head. To blinded minds, the Pontiff of Rome was instead of God. Hence the greatness of the popes and indescribable abuses. The evil went farther still. Pelagianism, in maintaining that man may attain perfect sanctification, pretended, likewise, that the merits of saints and martyrs might be applied to the Church. A particular virtue was even ascribed to their intercession. They were addressed in prayer, their aid was invoked in all the trials of life, and a real idolatry supplanted the adoration of the true and living God.

Pelagianism, at the same time, multiplied rites and ceremonies. Man imagining that he could, and that he ought, by good works, to render himself worthy of grace, saw nothing better fitted to merit it than outward worship. The law of ceremonies becoming endlessly complicated, was soon held equal at least to the moral law, and thus the conscience of Christians was burdened anew with a yoke which had been declared intolerable in the times of the apostles. (Acts, xv, 10.)

But what most of all deformed Christianity was the system of penance which rose out of Pelagianism. Penance at first consisted in certain public signs of repentance, which the Church required of those whom she had excluded for scandal, and who were desirous of being again received into her bosom.

By degrees, penance was extended to all sins, even the most secret, and was considered as a kind of chastisement to which it was necessary to submit, in order to acquire the pardon of God through the absolution of priests.