The nature and extent of the office of the civil magistrate : Consider'd in a sermon preach'd before the Right Honourable Sir George Thorold, bart. lord-mayor of the city of London, and the court of aldermen, and the liveries of the several companies, at the Parish-Church of St. Lawrence-Jewry, on Thursday, September 29. 1720. Being the festival of St. Michael the archangel, and the election-day of the lord-mayor for the year ensuing. By Benjamin Ibbot, D.D. rector of St. Paul's Shadwell, and chaplain in Ordinary to His Majesty.