In Brief
Wesley helped to organize and form societies of Christians throughout England, Scotland, Wales, North America and Ireland as small groups that developed intensive, personal accountability, discipleship and religious instruction among members. His great contribution was to appoint itinerant, unordained preachers who travelled widely to evangelise and care for people in the societies.
Under Wesley's direction, Methodists became leaders in many social issues of the day, including the prison reform and abolitionism movements. Wesley's contribution as a theologian was to propose a system of opposing theological stances. His greatest theological achievement was his promotion of what he termed "Christian Perfection", or holiness of heart and life. Wesley held that, in this life, Christians could come to a state in which the love of God, or perfect love, reigned supreme in their hearts. His evangelical theology, especially his understanding of Christian perfection, was firmly grounded in his sacramental theology. He continually insisted on the general use of the means of grace (prayer, scripture, meditation, Eucharist, etc.) as the means by which God sanctifies and transforms the believer.
Later in his career Wesley was a keen abolitionist. He spoke out and wrote against the slave trade. He published a pamphlet on slavery titled, Thoughts Upon Slavery, (1774). To quote from one of his tracts against the slave trade: "Liberty is the right of every human creature, as soon as he breathes the vital air; and no human law can deprive him of that right which he derives from the law of nature". Wesley was a friend of John Newton and William Wilberforce who were also influential in the abolition of slavery in Britain.
Throughout his life Wesley remained within the Church of England and insisted that his movement was well within the bounds of the Anglican tradition. His maverick use of church policy put him at odds with many within the Church of England, though toward the end of his life he was widely respected and referred to as "the best loved man in England."
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