After making a case for “exegetical preaching” (his term for what is commonly called “expository preaching”), Sinclair Ferguson reminds us that as important as this method is, it “will not overnight revolutionize our pulpits.”
It is men sent from God (cf. John 1:6), more than methods devised by these men, that God employs to build his kingdom.
This is not to say that methods are unimportant, but that it better to build the character of a man than for the man to master a method.
 From Sinclair Ferguson, “Exegesis,” in The Preacher and Preaching: Reviving the Art in the Twentieth Century, Samuel T. Logan, ed. (Phillipsburg: P & R Publishing, 1986) 195.