The perils of false Brethren, both in church, and state : Set forth in a sermon preach'd before the Right Honourable the Lord-Mayor, aldermen, and citizens of London, at the Cathedral-Church of St. Paul, on the 5th of November, 1709. By Henry Sacheverell, D.D. Dedicated to Sir Samuel Garrard, LD. Mayor: together with, the peril of being zealously affected, but not well: or, Reflections on the said Dr's. sermon.