But the one who at this time acquired by far the most potent, wholesome, and lasting influence upon Luther, was the Vicar-General, John von Staupitz. He was a remarkable man, of a noble and pious disposition, and a refined and far-seeing mind. A master of the forms of Scholastic theology, he was also deeply read in Scripture; he made its teachings the special standard of his life, and was careful to enjoin others to do the same. He strove after an inward, practical life in God, not confined to mere forms and observances. Sharp conflicts and controversies were not to his taste; but mildly and discreetly he sought to plant, in his own field of work, and to leave what he had planted in God's name to grow up.

[Illustration: FIG. 5.—STAUPITZ. (From the Portrait in St. Peter's
Convent at Salzburg.)]

It was during his visits to Erfurt that Staupitz came in contact with the gifted, thoughtful, and melancholy young monk. He treated Luther, both in conversation and letter, with fatherly confidence, and Luther unlocked to him, as to a father, his heart and its cares. Upon his wishing to confess to him all his many small sins, Staupitz insisted first on distinguishing between what were really sins, and what were not; as for self-imagined sins, or such a patchwork of offences as Luther laid before him, he would not listen to them; that was not the kind of seriousness, he would say, that God wished to have. Luther tormented himself with a system of penance, consisting of actual pain, punishments, and expiations. Staupitz taught him that repentance, in the Scriptural meaning, was an inward change and conversion, which must proceed from the love of holiness and of God; and that, for peace with God, he must not look to his own good resolutions to lead a better life, which he had not the strength to carry out, or to his own acts, which could never satisfy the law of God, but must trust with patience to God's forgiving mercy, and learn to see in Christ, whom God permitted to suffer for the sins of man, not the threatening Judge, but rather the loving Saviour. To Christ above all he referred him, when Luther pondered on the secret eternal will of God, and was near despair. God's eternal purpose, he would say, shines clearly in the wounds of Christ. Did his temptations not cease, he bade him see in them means to draw him to the love of God. The thoughts of Staupitz turned in this on the temptations to pride, which might themselves be the means of curing that pride, and on the great things for which God wished to prepare him. In a simple, practical manner, and from the experiences of his own life, he would thus counsel and converse with Luther. During the long course of a confidential intercourse with his friend, his own theology in later years became visibly developed, and his pupil of earlier days became afterwards his teacher. But Luther, both then and throughout his life, spoke of him with grateful affection as his spiritual father, and thanked God that he had been helped out of his temptations by Dr. Staupitz, without whom he would have been swallowed up in them and perished.

The first firm ground, however, for his convictions and his inner life, and the foundation for all his later teachings and works, was found by Luther in his own persevering study of Holy Writ. In this also he was encouraged by Staupitz, who must, however, have been amazed at his indefatigable industry and zeal. For the interpretation of the Bible the means at his command were meagre in the extreme. He himself explored in all cases to their very centre the truths of Christian salvation and the highest questions of moral and religious life. A single passage of importance would occupy his thoughts for days. Significant words, which he was not able yet to comprehend, remained fixed in his mind, and he carried them silently about with him. Thus it was, for example, as he tells us, with the text in Ezekiel, 'I will not the death of a sinner,' a passage which engrossed his earnest thoughts.

It was the third and last year of his monastic life at Erfurt that brought with it, as far as we see, the decisive turn for his inward struggles and labours.

In his second year, on May 2, 1507, he received, by command of his superiors, his solemn ordination as a priest. It was then for the first time since his entry into the convent against his father's will, that the latter saw him again. A convenient day was expressly arranged for him, to enable him to take part personally at the solemnity. He rode into Erfurt with a stately train of friends and relations. But in his opinion of the step taken by his son he remained unalterably firm. At the entertainment which was given in the convent to the young priest, the latter tried to extort from him a friendly remark upon the subject, by asking him why he seemed so angry, when monastic life was such a high and holy thing. His father replied in the presence of all the company, 'Learned brothers, have you not read in Holy Writ, that a man must honour father and mother?' And on being reminded how his son had been called, nay, compelled to this new life by heaven, 'Would to God,' he answered, 'it were no spirit of the devil!' He let them understand that he was there, eating and drinking, as a matter of duty, but that he would much rather be away.

To Luther, however, the post of high dignity to which he was now promoted brought new fear and anxiety. He had now to appear before God as a priest; to have Christ's Body, the very Christ Himself, and God actually present before him at the mass on the altar; to offer the Body of Christ as a sacrifice to the living and eternal God. Added to this, there were a multitude of forms to observe, any oversight wherein was a sin. All this so overpowered him at his first mass, that he could scarcely remain at the altar; he was well-nigh, as he said afterwards, a dead man.

With these priestly functions he united an assiduous devotion to his saints. By reading mass every morning, he invoked twenty-one particular saints, whom he had chosen as his helpers, taking three at a time, so as to include them all within the week.

As regards the most important problems of life, his study of the Scriptures gradually revealed to him the light which determined his future convictions. The path had already been pointed out to him by the words of St. Paul quoted by St. Bernard. When looking back, at the close of his life, on this his inward development, he tells us how perplexed he had been by what St. Paul said of the 'righteousness of God' (Rom. i. 17). For a long time he troubled himself about the expression, connecting it as he did, according to the ruling theology of the day, with God's righteousness in His punishment of sinners. Day and night he pondered over the meaning and context of the Apostle's words. But at length, he adds, God in His great mercy revealed to him that what St. Paul and the gospel proclaimed was a righteousness given freely to us by the grace of God, Who forgives those who have faith in His message of mercy, and justifies them, and gives them eternal life. Therewith the gate of heaven was opened to him, and thenceforth the whole remaining purport of God's word became clearly revealed. Still it was only by degrees, during the latter portion of his stay at Erfurt, and even after that, that he arrived at this full perception of the truth.

After their ordination the monks received the title of fathers. Luther was not as yet relieved of the duty of going out with a brother in quest of alms. But he was soon employed in the more important business of the Order, as, for instance, in transactions with a high official of the Archbishop, in which he displayed great zeal for the priesthood and for his Order.