It has been remarked that Calvin's theology was less original and effective than his legislation or policy.[188] The statement seems to overlook the peculiar service which was rendered to the Reformation movement by the _Institution_. The Reformation was a rebellion against the external authority of the mediæval Church; but every revolt, even that against the most flagrant abuses and the most corrupt rule, carries in it seeds of evil which must be slain if any real progress is to be made. For it instinctively tends to sweep away all restraints--those that are good and necessary as well as those that are bad and harmful. The leaders of every movement for reform have a harder battle to fight against the revolutionaries in their following than against their avowed opponents. At the root of the Reformation of the sixteenth century lay an appeal from man to God--from the priest, granting or withholding absolution in the confessional, to God making the sinner, who turns from his sins and has faith in the person and work of Christ, know in his heart that he is pardoned; from the decision of Popes and Councils to the decrees of God revealed in His Holy Word. This appeal was in the nature of the case from the seen to the unseen, and therein lay the difficulty; for unless this unseen could be made visible to the eye of the intelligence to such a degree that the restraining authority which it possessed could impress itself on the will, there was risk of its proving to be no restraining authority whatsoever, and of men fancying that they had been left to be a law unto themselves. What the _Christian Institution_ did for the sixteenth century was to make the unseen government and authority of God, to which all must bow, as visible to the intellectual eye of faith as the mechanism of the mediæval Church had been to the eye of sense. It proclaimed that the basis of all Christian faith was the Word of God revealed in the Holy Scriptures; it taught the absolute dependence of all things on God Himself immediately and directly; it declared that the sin of man was such that, apart from the working of the free grace of God, there could be neither pardon nor amendment, nor salvation; and it wove all these thoughts into a logical unity which revealed to the intellectual eye of its generation the "House of God not made with hands, eternal in the heavens." Men as they gazed saw that they were in the immediate presence of the authority of God Himself, directly responsible to Him; that they could test "the Pope's House" by this divine archetype; that it was their duty to reform all human institutions, ecclesiastical or political, in order to bring them into harmony with the divine vision. It made men know that to separate themselves from the visible mediæval Church was neither to step outside the sphere of the purpose of God making for their redemption, nor to free themselves from the duties which God requires of man.