Fierce words passed between the nobles and the prelate; the Duke himself was said to have threatened to drag Courtenay out of the church by the hair of his head, and at last the London populace, to whom John of Gaunt was hateful, burst in to their Bishop's rescue, and Wyclif's life was saved with difficulty by the aid of the soldiery. But his courage only grew with the danger. A Papal bull which was procured by the bishops, directing the University to condemn and arrest him, extorted from him a bold defiance. In a defence circulated widely through the kingdom and laid before Parliament, Wyclif broadly asserted that no man could be excommunicated by the Pope "unless he were first excommunicated by himself." He denied the right of the Church to exact or defend temporal privileges by spiritual censures, declared that a Church might justly be deprived by the King or lay lords of its property for defect of duty, and defended the subjection of ecclesiastics to civil tribunals. Bold as the defiance was, it won the support of the people and of the Crown. When he appeared at the close of the year in Lambeth Chapel to answer the Archbishop's summons, a message from the Court, forbade the Primate to proceed, and the Londoners broke in and dissolved the session.

Wyclif was still working hand in hand with John of Gaunt in advocating his plans of ecclesiastical reform, when the great insurrection of the peasants, which we shall soon have to describe, broke out under Wat Tyler. In a few months the whole of his work was undone. Not only was the power of the Lancastrian party on which Wyclif had relied for the moment annihilated, but the quarrel between the baronage and the Church, on which his action had hitherto been grounded, was hushed in the presence of a common danger. His "poor preachers" were looked on as missionaries of socialism. The Friars charged him with being a " sower of strife, who by his serpent-like instigation has set the serf against his lord," and though Wyclif tossed back the charge with disdain, he had to bear a suspicion which was justified by the conduct of some of his followers. John Ball, who had figured in the front rank of the revolt, was claimed as one of his adherents, and was alleged to have denounced in his last hour the conspiracy of the "Wyclifites." His most prominent scholar, Nicholas Herford, was said to have openly approved the brutal murder of Archbishop Sudbury. Whatever belief such charges might gain, it is certain that from this moment all plans for the reorganization of the Church were confounded in the general odium which attached to the projects of the peasant leaders, and that any hope of ecclesiastical reform at the hands of the baronage and the Parliament was at an end.

But even if the Peasant Revolt had not deprived Wyclif of the support of the aristocratic party with whom he had hitherto co-operated, their alliance must have been dissolved by the new theological position which he had already taken up. Some months before the outbreak of the insurrection, he had by one memorable step passed from the position of a reformer of the discipline and political relations of the Church to that of a protester against its cardinal beliefs. If there was one doctrine upon which the supremacy of the Mediaeval Church rested, it was the doctrine of Transubstantiation. It was by his exclusive right to the performance of the miracle which was wrought in the mass that the lowliest priest was raised high above princes. With the formal denial of the doctrine of Transubstantiation which Wyclif issued in the spring of 1381 began that great movement of revolt which ended, more than a century after, in the establishment of religious freedom, by severing the mass of the Teutonic peoples from the general body of the Catholic Church. The act was the bolder that he stood utterly alone. The University, in which his influence had been hitherto ail-powerful, at once condemned him. John of Gaunt enjoined him to be silent.

Wyclif was presiding as Doctor of Divinity over some disputations in the schools of the Augustinian Canons when his academical condemnation was publicly read, but though startled for the moment he at once challenged Chancellor or doctor to disprove the conclusions at which he had arrived. The prohibition of the Duke of Lancaster he met by an open avowal of his teaching, a confession which closes proudly with the quiet words, " I believe that in the end the truth will conquer." For the moment his courage dispelled the panic around him. The University responded to his appeal, and by displacing his opponents from office tacitly adopted his cause. But Wyclif no longer looked for support to the learned or wealthier classes on whom he had hitherto relied. He appealed, and the appeal is memorable as the first of such a kind in our history, to England at large. With an amazing industry he issued tract after tract in the tongue of the people itself. The dry, syllogistic Latin, the abstruse and involved argument which the great doctor had addressed to his academic hearers, were suddenly flung aside, and by a transition which marks the wonderful genius of the man the schoolman was transformed into the pamphleteer.

If Chaucer is the father of our later English poetry, Wyclif is the father of our later English prose. The rough, clear, homely English of his tracts, the speech of the ploughman and the trader of the day, though coloured with the picturesque phraseology of the Bible, is in its literary use as distinctly a creation of his own as the style in which he embodied it, the terse vehement sentences, the stinging sarcasms, the hard antitheses which roused the dullest mind like a whip. Once fairly freed from the trammels of unquestioning belief, Wyclif's mind worked fast in its career of scepticism. Pardons, indulgences, absolutions, pilgrimages to the shrines of the saints, worship of their images, worship of the saints themselves, were successively denied. A formal appeal to the Bible as the one ground of faith, coupled with an assertion of the right of every instructed man to examine the Bible for himself, threatened the very groundwork of the older dogmatism with ruin. Nor were these daring denials confined to the small circle of the scholars who still clung to him; with the practical ability which is so marked a feature of his character, Wyclif had organized some few years before an order of poor preachers, " the Simple Priests," whose coarse sermons and long russet dress moved the laughter of the clergy, but who now formed a priceless organization for the diffusion of their master's doctrines.