What is the Church? The word signifies an assembly; the Church of Jesus Christ is an assembly of faithful men, the whole company of God’s Chosen, His called out ones, the entire community of true followers of the Lord Jesus Christ. Wherever true Believers are, there is a part of the Church; wherever such men are not, whatever organization may be in existence, there is no Church of Jesus Christ. The Church is no corporation of priests, or confederacy of unconverted men—it is the assembly of those whose names are written in Heaven; any assembly of faithful men is a Church.
– Charles Spurgeon –