It led him, if not to reject, at all events to regard with profound distrust all assumptions of any gift of spiritual discernment distinguishable from ordinary powers of understanding. Tillotson's view was that the Spirit of God enlightens the human mind only through the reason, so that the faith of Abraham, for example, 'was the result of the wisest reasoning.'[220] He allows that the spiritual presence may act upon the reason by raising and strengthening the faculty, by making clear the object of inquiry, by suggesting arguments, by holding minds intent upon the evidence, by removing the impediments which hinder assent, and especially by making the persuasion of a truth effectual on the life.[221] This, however, is the very utmost that Tillotson could concede to those who dwell upon the presence within the soul of an inward spiritual light. Tillotson gave great offence to some of his contemporaries by some expressions he has used in relation to the degree of assurance which is possible to man in regard of religious truths. He based all assent upon rational evidence. But he unhesitatingly admitted that mathematics only admit of clear demonstration; in other matters proof consists in the best arguments that the quality and nature of the thing will bear. We may be well content, he said, with a well-grounded confidence on matters of religious truth corresponding to that which is abundantly sufficient for our purposes in the conduct of our most important worldly interests. A charge was thereupon brought against him of authorising doubt and opening a door to the most radical disbelief. The attack scarcely deserved Tillotson's somewhat lengthy defence. He had but re-stated what many before him had observed as to the exceptional character of demonstrative evidence, and the folly of expecting it where it is plainly inapplicable. A religious mind, itself thoroughly convinced, may chafe against possibility of doubt, but may as well complain against the conditions of human nature. Yet the controversy on this point between Tillotson and his opponents is instructive in forming a judgment upon the general character of religious thought in that age. Tillotson appears, on the one hand, to have been somewhat over-cautious in disclaiming the alleged consequences of his denial of absolute religious certainty. He allows the theoretical possibility of doubt, but speaks as if it were essentially unreasonable. He shows no sign of recognising the sincere faith that often underlies it; that prayerful doubt may be in itself a kind of prayer; that its possibility is involved in all inquiry; that there is such a thing as an irreligious stifling of doubt, resulting in a spiritual and moral degradation; that doubt may sometimes be the clear work of the Spirit of God to break down pride and self-sufficiency, to force us to realise what we believe, to quicken our sense of truth, and to bid us chiefly rest our faith on personal and