The Presbyterian Church is a Christian denomination that follows a system of governance led by elected elders, known as Presbyters. It emphasizes the authority of the Bible and the importance of faith in Jesus Christ. The church's roots trace back to the teachings of John Calvin during the Protestant Reformation in the 16th century. Presbyterians believe in the sovereignty of God and the necessity of grace through faith. They practice two sacraments: Baptism and the Lord's Supper. The church is organized into local congregations, regional bodies called presbyteries, and larger assemblies known as synods and the General Assembly.