This article unfolds the meaning of the confession found in the Second Helvetic Confession: “The preaching of the Word of God is the Word of God.” Is the sermon the Word of God, or is God’s Word found in man’s word?

This article underlines the authority of preaching that faithfully exposits the Word, for that is when Christ is revealed in his authority and power.

With consideration to the impact of secularization in society and the privatization of life, this article shows how the church was before and after Constantine, then draws some lessons for the life of the church in a post-Christian culture.