The preacher must courageously and ferociously believe that transformation occurs through the interplay of God’s Word and Spirit. He is simply a vessel, a broken jar of clay, spilling out before the people the water of life. The Holy Spirit always uses the revealed Word of God to open the eyes of both the unbeliever and believer to the wonders of the gospel. The preacher should not feel as if he is carrying the burden of life change; he merely carries the burden of faithful exposition and the robust proclamation of the text at hand, trusting that God’s Word will never return void (Isa. 55:10–11). This is the wonder and weight of preaching.
~ Chandler, Geiger, and Patterson