The story of his conversion deserves to be fully told; for it throws great light on the character of the parties which then divided the Church and the State. Sherlock was, in influence and reputation, though not in rank, the foremost man among the nonjurors. His authority and example had induced some of his brethren, who had at first wavered, to resign their benefices. The day of suspension came; the day of deprivation came; and still he was firm. He seemed to have found, in the consciousness of rectitude, and in meditation on the invisible world, ample compensation for all his losses. While excluded from the pulpit where his eloquence had once delighted the learned and polite inmates of the Temple, he wrote that celebrated Treatise on Death which, during many years, stood next to the Whole Duty of Man in the bookcases of serious Arminians. Soon, however, it began to be suspected that his resolution was giving way. He declared that he would be no party to a schism; he advised those who sought his counsel not to leave their parish churches; nay, finding that the law which had ejected him from his cure did not interdict him from performing divine service, he officiated at Saint Dunstan's, and there prayed for King William and Queen Mary. The apostolical injunction, he said, was that prayers should be made for all in authority, and William and Mary were visibly in authority. His Jacobite friends loudly blamed his inconsistency. How, they asked, if you admit that the Apostle speaks in this passage of actual authority, can you maintain that, in other passages of a similar kind, he speaks only of legitimate authority? Or how can you, without sin, designate as King, in a solemn address to God, one whom you cannot, without sin, promise to obey as King? These reasonings were unanswerable; and Sherlock soon began to think them so; but the conclusion to which they led him was diametrically opposed to the conclusion to which they were meant to lead him. He hesitated, however, till a new light flashed on his mind from a quarter from which there was little reason to expect any thing but tenfold darkness. In the reign of James the First, Doctor John Overall, Bishop of Exeter, had written an elaborate treatise on the rights of civil and ecclesiastical governors. This treatise had been solemnly approved by the Convocations of Canterbury and York, and might therefore be considered as an authoritative exposition of the doctrine of the Church of England. A copy of the manuscript was in Sancroft's possession; and he, soon after the Revolution, sent it to the press. He hoped, doubtless, that the publication would injure the new government; but he was lamentably disappointed. The book indeed condemned all resistance in terms as strong as he could himself have used; but one passage which had escaped his notice was decisive against himself and his fellow schismatics. Overall, and the two Convocations which had given their sanction to Overall's teaching, pronounced that a government, which had originated in rebellion, ought, when thoroughly settled, to be considered as ordained by God and to be obeyed by Christian men. 60 Sherlock read, and was convinced. His venerable mother the Church had spoken; and he, with the docility of a child, accepted her decree. The government which had sprung from the Revolution might, at least since the battle of the Boyne and the flight of James from Ireland, be fairly called a settled government, and ought therefore to be passively obeyed till it should be subverted by another revolution and succeeded by another settled government.
Sherlock took the oaths, and speedily published, in justification of his conduct, a pamphlet entitled The Case of Allegiance to Sovereign Powers stated. The sensation produced by this work was immense. Dryden's Hind and Panther had not raised so great an uproar. Halifax's Letter to a Dissenter had not called forth so many answers. The replies to the Doctor, the vindications of the Doctor, the pasquinades on the Doctor, would fill a library. The clamour redoubled when it was known that the convert had not only been reappointed Master of the Temple, but had accepted the Deanery of Saint Paul's, which had become vacant in consequence of the deprivation of Sancroft and the promotion of Tillotson. The rage of the nonjurors amounted almost to frenzy. Was it not enough, they asked, to desert the true and pure Church, in this her hour of sorrow and peril, without also slandering her? It was easy to understand why a greedy, cowardly hypocrite should refuse to take the oaths to the usurper as long as it seemed probable that the rightful King would be restored, and should make haste to swear after the battle of the Boyne. Such tergiversation in times of civil discord was nothing new. What was new was that the turncoat should try to throw his own guilt and shame on the Church of England, and should proclaim that she had taught him to turn against the weak who were in the right, and to cringe to the powerful who were in the wrong. Had such indeed been her doctrine or her practice in evil days? Had she abandoned her Royal Martyr in the prison or on the scaffold? Had she enjoined her children to pay obedience to the Rump or to the Protector? Yet was the government of the Rump or of the Protector less entitled to be called a settled government than the government of William and Mary? Had not the battle of Worcester been as great a blow to the hopes of the House of Stuart as the battle of the Boyne? Had not the chances of a Restoration seemed as small in 1657 as they could seem to any judicious man in 1691? In spite of invectives and sarcasms, however, there was Overall's treatise; there were the approving votes of the two Convocations; and it was much easier to rail at Sherlock than to explain away either the treatise or the votes. One writer maintained that by a thoroughly settled government must have been meant a government of which the title was uncontested. Thus, he said, the government of the United Provinces became a settled government when it was recognised by Spain, and, but for that recognition, would never have been a settled government to the end of time. Another casuist, somewhat less austere, pronounced that a government, wrongful in its origin, might become a settled government after the lapse of a century. On the thirteenth of February 1789, therefore, and not a day earlier, Englishmen would be at liberty to swear allegiance to a government sprung from the Revolution. The history of the chosen people was ransacked for precedents. Was Eglon's a settled government when Ehud stabbed him? Was Joram's a settled government when Jehe shot him? But the leading case was that of Athaliah. It was indeed a case which furnished the malecontents with many happy and pungent allusions; a kingdom treacherously seized by an usurper near in blood to the throne; the rightful prince long dispossessed; a part of the sacerdotal order true, through many disastrous years, to the Royal House; a counterrevolution at length effected by the High Priest at the head of the Levites. Who, it was asked, would dare to blame the heroic pontiff who had restored the heir of David? Yet was not the government of Athaliah as firmly settled as that of the Prince of Orange?
Hundreds of pages written at this time about the rights of Joash and the bold enterprise of Jehoiada are mouldering in the ancient bookcases of Oxford and Cambridge. While Sherlock was thus fiercely attacked by his old friends, he was not left unmolested by his old enemies. Some vehement Whigs, among whom Julian Johnson was conspicuous, declared that Jacobitism itself was respectable when compared with the vile doctrine which had been discovered in the Convocation Book. That passive obedience was due to Kings was doubtless an absurd and pernicious notion. Yet it was impossible not to respect the consistency and fortitude of men who thought themselves bound to bear true allegiance, at all hazards, to an unfortunate, a deposed, an exiled oppressor. But the theory which Sherlock had learned from Overall was unmixed baseness and wickedness. A cause was to be abandoned, not because it was unjust, but because it was unprosperous. Whether James had been a tyrant or had been the father of his people was quite immaterial. If he had won the battle of the Boyne we should have been bound as Christians to be his slaves. He had lost it; and we were bound as Christians to be his foes. Other Whigs congratulated the proselyte on having come, by whatever road, to a right practical conclusion, but could not refrain from sneering at the history which he gave of his conversion. He was, they said, a man of eminent learning and abilities. He had studied the question of allegiance long and deeply. He had written much about it. Several months had been allowed him for reading, prayer and reflection before he incurred suspension, several months more before he incurred deprivation. He had formed an opinion for which he had declared himself ready to suffer martyrdom; he had taught that opinion to others; and he had then changed that opinion solely because he had discovered that it had been, not refuted, but dogmatically pronounced erroneous by the two Convocations more than eighty years before. Surely, this was to renounce all liberty of private judgment, and to ascribe to the Synods of Canterbury and York an infallibility which the Church of England had declared that even Oecumenical Councils could not justly claim. If, it was sarcastically said, all our notions of right and wrong,