Methodism, also called the Methodist movement, is a Protestant Christian tradition whose origins, doctrine and practice derive from the life and teachings of John Wesley. George Whitefield and John's brother Charles Wesley were also significant early leaders in the movement. They were named Methodists for "the methodical way in which they carried out their Christian faith". Methodism originated as a revival movement within Anglicanism with roots in the Church of England in the 18th century and became a separate denomination after Wesley's death. The movement spread throughout the British Empire, the United States and beyond because of vigorous missionary work, and today has about 80 million adherents worldwide. Most Methodist denominations are members of the World Methodist Council.
Wesleyan theology, which is upheld by the Methodist denominations, focuses on sanctification and the transforming effect of faith on the character of a Christian, exemplified by living a victorious life over sin. Unique to Wesleyan Methodism is its definition of sin: a "voluntary transgression of a known law of God." Distinguishing doctrines include the new birth, assurance, imparted righteousness, and obedience to God manifested in performing works of piety. John Wesley held that entire sanctification was "the grand depositum", or foundational doctrine, of the Methodist faith, and its propagation was the reason God brought Methodists into existence. Scripture is considered the primary authority, but Methodists also look to Christian tradition, including the historic creeds. Most Methodists teach that Jesus Christ, the Son of God, died for all of humanity and that salvation is achievable for all. This is the Arminian doctrine, as opposed to the Calvinist position that God has predestined the salvation of a select group of people. However, Whitefield and several other early leaders of the movement were considered Calvinistic Methodists and held to the Calvinist position.
