Reading Rebecca Goldstein's wonderful book, Betraying Spinoza, I came upon her quote from Spinoza's Tractatus and looked up the larger section of the Preface from which it came. Her quote is in red, but the rest is worth the read as well. From here in Anglican Land, sounds like he pegged it.
"I have often wondered, that persons who make a boast of professing the Christian religion, which is a religion of love, joy, and charity to all men, should quarrel with such rancorous animosity, and display daily towards one another such bitter hatred, that this, rather than the virtues they claim, is the readiest criterion of their faith. Matters have long since come to such a pass, that one can only pronounce a man Christian, Turk, Jew, or Heathen, by his general appearance and attire, by his frequenting this or that place of worship, or employing the phraseology of a particular sect— as for manner of life, it is in all cases the same.
Inquiry into the cause of this anomaly leads me unhesitatingly to ascribe it to the fact, that the ministries of the Church are regarded by the masses merely as dignities, her offices as posts of emolument— in short, popular religion may be summed up as respect for ecclesiastics.
The spread of this misconception inflamed every worthless fellow with an intense desire to enter holy orders, and thus the love of diffusing God's religion degenerated into sordid avarice and ambition. Every church became a theatre, where orators, instead of church teachers, harangued, caring not to instruct the people, but striving to attract admiration, to bring opponents to public scorn, and to preach only novelties and paradoxes, such as would tickle the ears of their congregation.
This state of things necessarily stirred up an amount of controversy, envy, and hatred, which no lapse of time could appease; so that we can scarcely wonder that of the old religion nothing survives but its outward forms (even these, in the mouth of the multitude, seem rather adulation than adoration of the Deity), and that faith has become a mere compound of credulity and prejudices—aye, prejudices too, which degrade man from rational being to beast, which completely stifle the power of judgment between true and false, which seem, in fact, carefully fostered for the purpose of extinguishing the last spark of reason!
Piety, great God! and religion are become a tissue of ridiculous mysteries; men, who flatly despise reason, who reject and turn away from understanding as naturally corrupt, these, I say, these of all men, are thought, O lie most horrible! to possess light from on High.
Verily, if they had but one spark of light from on High, they would not insolently rave, but would learn to worship God more wisely, and would be as marked among their fellows for mercy as they now are for malice; if they were concerned for their opponents' souls, instead of for their own reputations, they would no longer fiercely persecute, but rather be filled with pity and compassion. Furthermore, if any Divine light were in them, it would appear from their doctrine. I grant that they are never tired of professing their wonder at the profound mysteries of Holy Writ; still I cannot discover that they teach anything but speculations of Platonists and Aristotelians, to which (in order to save their credit for Christianity) they have made Holy Writ conform; not content to rave with the Greeks themselves, they want to make the prophets rave also; showing conclusively, that never even in sleep have they caught a glimpse of Divine nature.
The very vehemence of their admiration for the mysteries plainly attests, that their belief in the Bible is a formal assent rather than a living faith: and the fact is made still more apparent by their laying down beforehand, as a foundation for the study and true interpretation of Scripture, the principle that it is in every passage true and divine. Such a doctrine should be reached only after strict scrutiny and thorough comprehension of the Sacred Books ( which would teach it much better, for they stand in need of no human factions), and not be set up on the threshold, as it were, of inquiry."