Deceivers deceiv'd, or, The mistakes of wickedness in sundry erroneous and deceitful principles, practised in our late fatal times, and suspected still in the reasonings of unquiet spirits : delivered in a sermon at St. Paul's, October 20th 1661 before the Right Honorable Sir Richard Browne Knight and Baronet, Lord Maior of the city of London, and the aldermen his brethren : being the initial also of the Reverend Dr. John Berwick, dean of the said church, at the first celebrity of divine service with the organ and choiristers, which the Lord Maior himself solemniz'd with his personal presence from the very beginning.