Holiness adherents believe that the "second work of grace" refers to a personal experience subsequent to regeneration, in which the believer is cleansed of the tendency to commit sin. This experience of "entire sanctification" enables the believer to live a holy life, and ideally, to live entirely without willful sin, though it is generally accepted that a sanctified individual is still capable of committing sin.

Holiness groups believe the moral aspects of the law of God are pertinent for today, and so expect their adherents to obey behavioral rules—for example, many groups have statements prohibiting the consumption of alcohol, participation in any form of gambling, and entertainments such as dancing and movie-going.[1] This position does attract opposition from some evangelicals, who charge that such an attitude refutes or slights Reformation (particularly Calvinist) teachings that the effects of original sin remain even in the most faithful of souls.

History
Though it became a multi-denominational movement over time and furthered by the Second Great Awakening which energized churches of all stripes, the Holiness movement has its roots in Wesleyanism.

The Methodists of the 19th century continued the interest in Christian holiness that had been started by their founder, John Wesley. They continued to publish Wesley's works and tracts, including his famous A Plain Account of Christian Perfection. From 1788 to 1808, the entire text of A Plain Account was placed in the Discipline manual of the Methodist Episcopal Church, and numerous persons in early American Methodism professed the experience of entire sanctification, including Bishop Francis Asbury.

By the 1840s, a new emphasis on holiness and Christian perfection had begun within American Methodism. Two major leaders of the Holiness revival were Phoebe Palmer and her husband, Dr. Walter Palmer. In 1835, Palmer's sister, Sarah A. Lankford, had started holding Tuesday Meetings for the Promotion of Holiness in her New York City home. In 1837, Palmer experienced what she called entire sanctification and had become the leader of the Tuesday Meetings by 1839. At first only women attended these meetings, but eventually Methodist bishops and hundreds of clergy and laymen began to attend as well. At the same time, Methodist minister Timothy Merritt of Boston founded a journal called the Guide to Christian Perfection, later renamed The Guide to Holiness. This was the first American periodical dedicated exclusively to promoting the Wesleyan message of Christian holiness. In 1865, the Palmers purchased The Guide which at its peak had a circulation of 30,000. In 1859, Palmer published The Promise of the Father, in which she argued in favor of women in ministry. This book later influenced Catherine Booth, co-founder of the Salvation Army. The practice of ministry by women is common but not universal within the denominations of the holiness movement.

At the Tuesday Meetings, Methodists soon enjoyed fellowship with Christians of different denominations, including the Congregationalist Thomas Upham. Upham was the first man to attend the meetings, and his participation in them led him to study mystical experiences, looking to find precursors of holiness teaching in the writings of persons like German Pietist Johann Arndt and the Roman Catholic mystic Madame Guyon. Other non-Methodists also contributed to the holiness movement.

During the same era Asa Mahan, the president of Oberlin College, and Charles Grandison Finney, an evangelist associated with the college, promoted the idea of Christian holiness. In 1836, Mahan experienced what he called a baptism with the Holy Spirit. Mahan believed that this experience had cleansed him from the desire and inclination to sin. Finney believed that this experience might provide a solution to a problem he observed during his evangelistic revivals. Some people claimed to experience conversion but then slipped back into their old ways of living. Finney believed that the filling with the Holy Spirit could help these converts to continue steadfast in their Christian life.

Representative was the revivalism of Rev. James Caughey, an American missionary sent by the Wesleyan Methodist Church to work in Ontario, Canada from the 1840s through 1864. He brought in the converts by the score, most notably in the revivals in Canada West 1851-53. His technique combined restrained emotionalism with a clear call for personal commitment, coupled with follow-up action to organize support from converts. It was a time when the Holiness Movement caught fire, with the revitalized interest of men and women in Christian perfection. Caughey successfully bridged the gap between the style of earlier camp meetings and the needs of more sophisticated Methodist congregations in the emerging cities.

Presbyterian William Boardman promoted the idea of holiness through his evangelistic campaigns and through his book The Higher Christian Life, which was published in 1858. Also, Hannah Whitall Smith, a Quaker, experienced a profound personal conversion. Sometime in the 1860s, she found what she called the "secret" of the Christian life—devoting one’s life wholly to God and God’s simultaneous transformation of one’s soul. Her husband, Robert Pearsall Smith, had a similar experience at the camp meeting in 1867.

Methodist minister B. F. Haynes wrote a book, Tempest-Tossed on Methodist Seas, about his decision to leave the Methodist church and join the Church of the Nazarene. In it he described the bitter divisions within the Methodist church over the Holiness movement.

The first distinct "Holiness camp meeting" convened at Vineland, New Jersey in 1867 under the leadership of John S. Inskip, John A. Wood, Alfred Cookman, and other Methodist ministers. The gathering attracted as many as 10,000 people. At the close of the encampment, while the ministers were on their knees in prayer, they formed the National Camp Meeting Association for the Promotion of Holiness, and agreed to conduct a similar gathering the next year. This organization was commonly known as the National Holiness Association. Later, it became known as the Christian Holiness Association and subsequently the Christian Holiness Partnership.

The second National Camp Meeting was held at Manheim, Pennsylvania, and drew upwards of 25,000 persons from all over the nation. People called it a "Pentecost," and it did not disappoint them. The service on Monday evening has almost become legendary for its spiritual power and influence. The third National Camp Meeting met at Round Lake, New York. This time the national press attended and write-ups appeared in numerous papers, including a large two-page pictorial in Harper's Weekly. These meetings made instant religious celebrities out of many of the workers. Robert and Hannah Smith were among those who took the Holiness message to England, and their ministries helped lay the foundation for the now-famous Keswick Convention.

In the 1870s, the Holiness movement spread to Great Britain, where it was sometimes called the higher life movement after the title of William Boardman’s book The Higher Life. Higher life conferences were held at Broadlands and Oxford in 1874 and in Brighton and Keswick in 1875. The Keswick Convention soon became the British headquarters for the movement. The Faith Mission in Scotland was one consequence of the British Holiness movement. Another was a flow of influence from Britain back to the United States. In 1874, Albert Benjamin Simpson read Boardman’s Higher Christian Life and felt the need for such a life himself. He went on to found the Christian and Missionary Alliance.

In 1871, the American evangelist Dwight L. Moody had what he called an "endowment with power" as a result of some soul-searching and the prayers of two Free Methodist women who attended one of his meetings. He did not join the Holiness movement but certainly advanced some of its ideas and even voiced his approval of it on at least one occasion, which helped to spread Holiness ideas further than the movement itself.

Overseas missions emerged as a central focus of the Holiness movement. As one example of this world evangelism thrust, M. W. Knapp, who founded the Revivalist in 1883, the International (Pentecostal) Revival League and Prayer League, the Central Holiness League 1893, and the International Holiness Union (Church) and Prayer League, saw much success in Korea, Japan, China, India, South Africa and South America. Methodist mission work in Japan led to the creation of the One Mission Society, one of the largest missionary-sending Holiness agencies in the world.

Throughout the early 20th century, Holiness advocates found themselves at home with Fundamentalism and later the Evangelical movement, holding the line in some denominations and institutions of higher learning against a tide of liberal Higher Criticism (e.g. Azusa Pacific University), but losing ground in others (e.g. The Methodist Church).

During this time, Pentecostalism and the Charismatic movement competed for the loyalties of Holiness advocates (see related section below), thus dwindling the number of non-tongues Holiness movement adherents.

In the 1950s and 1960s, several small groups left Holiness denominations to form the conservative holiness movement. As one example: During the 1968 merger of the Wesleyan Methodist Church and the Pilgrim Holiness Church which formed the Wesleyan Church, the Allegheny Conference and the Tennessee Conference of the Wesleyan Methodist Church (now known as the Bible Methodist Connection of Tennessee), and some churches of the Pilgrim Holiness Church did not approve of the merger and several new Holiness denominations were formed. They stress modesty in dress and traditional worship practices.

Souce: Wikipedia