According to James Durham, in his Spurgeon-acclaimed work Christ Crucified: The Marrow of the Gospel in 72 Sermons on Isaiah 53, Jesus stands in fourfold relation to preaching.
First, all preaching is to explain him. If it does not explain him, it falls short and “that preaching, which stands not in relation to him, is beside the text and mark.” (74)
Second, he is the foundation of all preaching and “preaching without him lacks a foundation, and is the building, as it were, of a castle in the air” (74).
Third, he is the great end of preaching. Durham states that hearers must “have him known in their judgments” and “have him high in their hearts and affections” (75).
Fourth and final, he stands in relation to preaching as its life and power. Without him, says Durham, “no preaching can be effectual, no soul can be captivated and brought to him.” (75)
(Durham, James. Christ Crucified: The Marrow of the Gospel in 72 Sermons on Isaiah 53. Dallas: Napthali Press, 2007. Print.)
(HT: Jude St.John)