[In October/November of 1517, a little more than 500 years ago, Martin Luther published and distributed his “95 Theses”, enumerating his objections to certain practices, at that time, of the Roman Catholic Church. The publication of the “95 Theses” is commonly considered to be the event that sparked the Protestant Reformation. To commemorate its 500 th  anniversary, we reprint here Philip Schaff’s introduction to the history of the Reformation, from volume six of his excellent work, History of the Christian Church.]   Introduction to the Protestant Reformation, pt. 5, by Philip Schaff   “Now the Lord is the Spirit: and where the Spirit of the Lord is, there is liberty.” (2 Cor. 3:17, KJV) Section 9. The Reformation and Rationalism The Roman Catholic Church makes Scripture and tradition the supreme rule of faith, laying the chief stress on tradition, that is, the teaching of an infallible church headed by an infallible Pope, as the judge of the meaning of both. Evangelical Protestantism makes the Scripture alone the supreme rule, but uses tradition and reason as means in ascertaining its true sense. Rationalism raises human reason above Scripture and tradition, and accepts them only as far as they come within the limits of its comprehension. It makes rationality or intelligibility the measure of credibility. We take the word Rationalism here in the technical sense of a theological system and tendency, in distinction from rational theology. The legitimate use of reason in religion is allowed by the Catholic and still more by the Protestant church, and both have produced scholastic systems in full harmony with orthodoxy. Christianity is above reason, but not against reason. The Reformation is represented as the mother of Rationalism both by Rationalistic and by Roman Catholic historians and controversialists, but from an opposite point of view, by the former to the credit, by the latter to the disparagement of both. The Reformation, it is said, took the first step in the emancipation of reason: it freed us from the tyranny of the church. Rationalism took the second step: it freed us from the tyranny of the Bible. “Luther,” says Lessing, the champion of criticism against Lutheran orthodoxy, “thou great, misjudged man! Thou hast redeemed us from the yoke of tradition: who will redeem us from the unbearable yoke of the letter! Who will at last bring us a Christianity such as thou would teach us now, such as Christ himself would teach!” Roman Catholics go still further and hold Protestantism responsible for all modern revolutions and for infidelity itself, and predict its ultimate dismemberment and dissolution. But this charge is sufficiently set aside by the undeniable fact that modern infidelity and revolution in their worst forms have appeared chiefly in Roman Catholic countries, as desperate reactions against hierarchical and political despotism. The violent suppression of the Reformation in France ended at last in a radical overthrow of the social order of the church. In Roman Catholic countries, like Spain and Mexico, revolution has become a chronic disease. Romanism provokes infidelity among cultivated minds by its excessive supernaturalism. The Reformation checked the skepticism of the renaissance, and the anarchical tendencies of the Peasants’ War in Germany and of the Libertines in Geneva. An intelligent faith is the best protection against infidelity; and a liberal government is a safeguard against revolution. The connection of the Reformation with Rationalism is a historical fact, but they are related to each other as the rightful use of intellectual freedom to the excess and abuse of it. Rationalism asserts reason against revelation, and freedom against divine as well as human authority. It is a one-sided development of the negative, protesting, antipapal and antitraditional factor of the Reformation to the exclusion of its positive, evangelical faith in the revealed will and word of God. It denies the supernatural and miraculous. It has a superficial sense of sin and guilt, and is essentially Pelagian; while the Reformation took the opposite Augustinian ground and proceeded from the deepest conviction of sin and the necessity of redeeming grace. The two systems are thus theoretically and practically opposed to each other. And yet there is an intellectual and critical affinity between them, and Rationalism is inseparable from the history of Protestantism. It is in the modern era of Christianity what Gnosticism was in the ancient church—a revolt of private judgment against the popular faith and church orthodoxy, an overestimate of theoretic knowledge, but also a wholesome stimulus to inquiry and progress. It is not a church or sect (unless we choose to include Socinianism and Unitarianism), but a school in the church, or rather a number of schools which differ very considerably from each other. Rationalism appeared first in the seventeenth century in the Church of England, though without much effect upon the people, as Deism, which asserted natural religion versus revealed religion; it was matured in its various phases after the middle of the eighteenth century on the Continent, especially in Protestant Germany since Lessing (d. 1781) and Semler (d. 1791), and gradually obtained the mastery of the chairs and pulpits of Lutheran and Reformed churches, till about 1817, when a revival of the positive faith of the Reformation spread over Germany and a serious conflict began between positive and negative Protestantism, which continues to this day. 1. Let us first consider the relation of the Reformation to the use of reason as a general principle. The Reformation was a protest against human authority, asserted the right of private conscience and judgment, and roused a spirit of criticism and free inquiry in all departments of knowledge. It allows, therefore, a much wider scope for the exercise of reason in religion than the Roman church, which requires unconditional submission to her infallible authority. It marks a real progress, but this progress is perfectly consistent with a belief in revelation on subjects which lie beyond the boundary of time and sense. What do we know of the creation, and the world of the future, except what God has chosen to reveal to us? Human reason can prove the possibility and probability of the existence of God and the immortality of the soul, but not the certainty and necessity. It is reasonable, therefore, to believe in the supernatural on divine testimony, and it is unreasonable to reject it. The Reformers used their reason and judgment very freely in their contest with church authority. Luther refused to recant in the crisis at Worms, unless convinced by testimonies of the Scriptures and “cogent arguments.” For a while he was disposed to avail himself of the humanistic movement which was skeptical and rationalistic in its tendency, but his strong religious nature always retained the mastery. He felt as keenly as any modern Rationalist, the conflict between natural reason and the transcending mysteries of revelation. He was often tormented by doubts and even temptations to blasphemy, especially when suffering from physical infirmity. A comforter of others, he needed comfort himself and asked the prayers of friends to fortify him against the assaults of the evil spirit, with whom he had, as he thought, many a personal encounter. He confessed, in 1524, how glad he would have been five years before in his war with papal superstition, if Carlstadt could have convinced him that the Eucharist was nothing but bread and wine, and how strongly he was then inclined to that rationalistic view which would have given a death blow to transubstantiation and the mass. He felt that every article of his creed—the trinity in unity, the incarnation, the transmission of Adam’s sin, the atonement by the blood of Christ, baptismal regeneration, the real presence, the renewal of the Holy Spirit, the resurrection of the body—transcended human comprehension. In Aug. 2, 1527, during the raging of the pestilence at Wittenberg, he wrote to Melanchthon, who was absent at Jena: “For more than a week I have been tossed about in death and hell; so that, hurt in all my body, I still tremble in every limb. For having almost wholly lost Christ, I was driven about by storms and tempests of despair and blasphemy against God. But God, moved by the prayers of the saints, begins to have pity upon me, and has drawn my soul out of the lowest hell. Do not cease to pray for me, as I do for you. I believe that this agony of mine pertains to others also.” In such trials and temptations, he clung all the more mightily to the Scriptures and to faith which believes against reason and hopes against hope. “It is a quality of faith,” he says in the explanation of his favorite Epistle to the Galatians, “that it wrings the neck of reason and strangles the beast, which else the whole world, with all creatures, could not strangle. But how? It holds to God’s Word, and lets it be right and true, no matter how foolish and impossible it sounds. So did Abraham take his reason captive and slay it, inasmuch as he believed God’s Word, wherein was promised him that from his unfruitful and as it were dead wife, Sarah, God would give him seed.” This and many similar passages clearly show the bent of Luther’s mind. He knew the enemy, but overcame it; his faith triumphed over doubt. In his later years he became more and more a conservative churchman. He repudiated the mystic doctrine of the inner word and spirit, insisted on submission to the written letter of the Scriptures, even when it flatly contradicted reason. He traced the errors of the Zwickau prophets, the rebellious peasants, the Anabaptists, and the radical views of Carlstadt and Zwingli, without proper discrimination, to presumptuous inroads of the human reason into the domain of faith, and feared from them the overthrow of religion. He so far forgot his obligations to Erasmus as to call him an Epicurus, a Lucian, a doubter, and an atheist. Much as he valued reason as a precious gift of God in matters of this world, he abused it with unreasonable violence, when it dared to sit in judgment over matters of faith. Certainly, Luther must first be utterly divested of his faith, and the authorship of his sermons, catechisms and hymns must be called in question, before he can be appealed to as the father of Rationalism. He would have sacrificed his reason ten times rather than his faith. Zwingli was the most clear-headed and rationalizing among the Reformers. He did not pass through the discipline of monasticism and mysticism, like Luther, but through the liberal culture of Erasmus. He had no mystic vein, but sound, sober, practical common sense. He always preferred the plainest sense of the Bible. He rejected the Catholic views on original sin, infant damnation and the corporeal presence in the eucharist, and held advanced opinions which shocked Luther and even Calvin. But he nevertheless reverently bowed before the divine authority of the inspired Word of God, and had no idea of setting reason over it. His dispute with Luther was simply a question of interpretation, and he had strong arguments for his exegesis, as even the best Lutheran commentators must confess. Calvin was the best theologian and exegete among the Reformers. He never abused reason, like Luther, but assigned it the office of an indispensable handmaid of revelation. He constructed with his logical genius the severest system of Protestant orthodoxy which shaped French, Dutch, English and American theology, and fortified it against Rationalism as well as against Romanism. His orthodoxy and discipline could not keep his own church in Geneva from becoming Socinian in the eighteenth century, but he is no more responsible for that than Luther for the Rationalism of Germany, or Rome for the infidelity of Voltaire. Upon the whole, the Reformed churches in England, Scotland and North America, have been far less invaded by Rationalism than Germany. [This study will continue, D.V., in the next issue.] This study is taken from:  Schaff, Philip.  History of the Christian Church, Vol. VI. New York: Charles Scribner’s Sons, 1904. A PDF file of this book can be downloaded, free of charge, at: http://www.ClassicChristianLibrary.com