The Marks of the True Church

Article 29 of the Belgic Confession begins this way: We believe that we ought diligently and circumspectly to discern from the Word of God which is the true church, since all sects which are in the world assume to themselves the name of the church. But we speak here not of hypocrites, who are mixed in the church with the good, yet are not of the church, though externally in it; but we say that the body and communion of the true church must be distinguished from all sects who call themselves...