Preaching Christ

To speak of an ordinance, a sacrament, any means of grace, even the Holy Scriptures of truth, as if they were in any sense the power unto salvation, or as if they contained, whatever its original source, the grace by which we live unto God, thus leading men to look to them, instead of only, by their help, to Christ and his Spirit is to ‘do despite to the Spirit of grace’.

Charles P. McIlvaine in Preaching Christ, p. 50.