"God planned for his Son to be crucified (Revelation 13:8; 2 Timothy 1:9) and for hell to be terrible (Matthew 25:41) so that we would have the clearest witnesses possible to what is at stake when we preach. What gives preaching its seriousness is that the mantle of the preacher is soaked with the blood of Jesus and singed with fire of hell. That’s the mantle that turns mere talkers into preachers. Yet tragically some of the most prominent evangelical voices today diminish the horror of the cross and the horror of hell—the one stripped of its power to bear our punishment, and the other demythologized into self-dehumanization and the social miseries of this world."
John Piper in his sermon, Why_Expositional_Preaching_is_Particularly_Glorifying_to_God