The danger [in preaching] always lies in letting the form and content get in the way of what should be the single concern: the gospel proclaimed through human weakness but accompanied by the powerful work of the Spirit so that lives are changed through a divine-human encounter. That is hard to teach in a course in homiletics, but it still stands as the true need in genuinely Christian preaching.
Gordon Fee, as quoted in Sinclair Ferguson’s book, “The Holy Spirit.”