“I love religion, with all my soul, where it is sincere; but abhor, above all things, the pretense or abuse of it, to advance any purpose but those that regard the other world.”
Letter of Sir Charles Wogan to Jonathan Swift (February 27, 1732) 
The pretense of religion is a false claim to piety in one’s self. The abuse of religion is a false appeal to piety in others. The former is the hypocrisy of vain men who covet praise. The later is the hypocrisy of vulpine men who covet power. The common mark of both, as Wogan says, is that their purposes lie in this world, the one in outward shows and the other in secret stratagems. This is the essence of Christ’s criticism of the decadent religion of his day. It had degraded into a toy for religious dandies and a tool for designing men.
) Jonathan Swift, Works, vol. 17 (Boston: Houghton Mifflin, 1884), vol. 17, pp. 423-469, quote p. 466