The church invisible “consists of the whole number of the elect that have been, are, or shall be gathered into one under Christ, the head thereof.” This is a pure society, the church in which Christ dwells. It is the body of Christ. it is called “invisible” because the greater part of those who constitute it are already in heaven or are yet unborn, and also because its members still on earth cannot certainly be distinguished. The qualifications of membership in it are internal and are hidden. It is unseen except by Him who “searches the heart.” “The Lord knoweth them that are his” (2 Timothy 2:19).