The One thing needful discovered; or, Which is the best religion? Being a serious enquiry what church or communion is best and safest to join with, in order to obtain everlasting life? In which are truly and fairly stated the different principles of most professions in the Church of Christ, viz. that of Rome, England, Presbyterians, Independants, Anabaptists, Quakers, Arians, Socinians, Arminians, Pelagians, Muggletonians, Libertines, Ranters. Adamites, and Seekers: these are sixteen opinions dividing the Church of Christ. In a dialogue between the Bishop of London, and a country farmer. Entered according to order.