Rules for the discovery of false prophets [electronic resource] : or the dangerous impositions of the people called Methodists detected at the bar of scripture, and reason. A sermon preached before the University at St. Mary's in Oxford, on Whitsunday 1758. With a preface In Vindication of certain Articles proposed to the serious Consideration of the Company of Salters in London: and an appendix Containing authentick Vouchers; from the Writings of the Methodists, &c. in Support of the Charge, which has been brought against them. By John Free, D. D. Vicar of East-Coker in Somersetshire, Thursday-Lecturer of St. Mary-Hill, London, and Lecturer of Newington in Surry.