This Reformed theologian of the 19th century sure sounds different than a lot of Reformed leaders of today.
ďAs the Eucharist forms the very heart of the whole Christian worship, so it is clear that the entire question of the church, which all are compelled to acknowledgeóthe great life problem of the ageócenters ultimately in the sacramental question as its inmost heart and core. Our view of the Lordís Supper must ever condition and rule in the end our view of Christís person and the conception we form of the church. It must influence, at the same time, very materially, our whole system of theology, as well as all our ideas of ecclesiastical historyĒ (John W. Nevin, ďMystical PresenceĒ  in The Mystical Presence and other Writings on the Eucharist eds. Bard Thompson and George Bricker [Boston: United Church Press, 1966]).