A church service (or a service of worship) is a formalized period of Christian communal worship, often held in a church building. It often but not exclusively occurs on Sunday, or Saturday in the case of those churches practicing seventh-day Sabbatarianism. The church service is the gathering together of Christians to be taught the "Word of God" (the Christian Bible) and encouraged in their faith. Technically, the "church" in "church service" refers to the gathering of the faithful rather than to the building in which it takes place. In most Christian traditions, services are presided over by clergy wherever possible. Styles of service vary greatly, from the Anglican, Eastern Orthodox, Oriental Orthodox, Presbyterian, Roman Catholic, and Lutheran traditions of liturgical worship to the evangelical Protestant style, that often combines worship with teaching for the believers, which may also have an evangelistic component appealing to the non-Christians or skeptics in the congregation. Quakers and some other groups have no formal outline to their services, but allow the worship to develop as the participants present feel moved. The majority of Christian denominations hold church services on the Lord's Day (with many offering Sunday morning and Sunday evening services); a number of traditions have mid-week Wednesday evening services as well. In some Christian denominations, church services are held daily, with these including those in which the canonical hours are prayed, as well as the offering of the Mass, among other forms of worship. In addition to this, many Christians attend services on holy days such as Christmas, Ash Wednesday, Good Friday, Ascension Thursday, among others depending on the Christian denomination. History The worship service is a practice of Christian life that has its origins in the Jewish worship. Jesus Christ and Paul of Tarsus taught a new form of worship of God. As recorded in the gospels, Jesus met together with His disciples to share teachings, discuss topics, pray, and sing hymns. The holding of church services pertains to the observance of the Lord's Day in Christianity. The Bible has a precedent for a pattern of morning and evening worship that has given rise to Sunday morning and Sunday evening services of worship held in the churches of many Christian denominations today, a "structure to help families sanctify the Lord’s Day." In and , "God commanded the daily offerings in the tabernacle to be made once in the morning and then again at