It is not surprising that the Church is as she is today; she has been given philosophy and entertainment. By those means a minister may attract and keep a crowd for a while; but they cannot “build up”; and the business of preachers is to build up, not to attract a crowd. Nothing builds up but the unadulterated Word of God. There is no authority apart from this; and it must not be modified or trimmed to suit the fashion of modern science, or some supposed “assured results of criticism” which are always changing. It is the “everlasting gospel,” it is the “eternal Word,” the same Word which Paul and the other apostles preached, the same Word which the Protestant Reformers preached, and the Puritans, and the great preachers of two hundred years ago, and likewise Spurgeon in the last century without any modifications whatsoever. It is because this has been so largely forgotten in the last hundred years that things are as they are today.
D. Martyn Lloyd-Jones, “Christian Unity: An Exposition of Ephesians 4:1-16,” pg.203-204