Holiness churches in Upland California, United States

The Holiness movement involves a set of beliefs and practices which emerged within 19th-century Methodism. A number of Evangelical Christian denominations, parachurch organizations, and movements emphasize those beliefs as central doctrine. The movement is Wesleyan-Arminian in theology,[1] and is defined by its emphasis on John Wesley's doctrine of a second work of grace leading to Christian perfection. As of 2015[update] Holiness-movement churches had an estimated 12 million adherents.[2]