In Christianity, a church service (also referre to as holy mass) is a term used to describe a formalized period of communal worship, often but not exclusively occurring 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 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.