Basic Ecclesiology: Study of the Church of Jesus Christ 1) The church is not a physical building. 2) The church is a people. Church in Greek is, Ecclessia. It means, people that are called out from the general public, that is, ‘Called Out Ones’. It means an assembly of people called out from the world (darkness). So, the church is a people called out, separated from the world. 1Pet. 2: