If Jesus had preached the same message that ministers preach today, He would never have been crucified.
In revival, God is not concerned about filling empty churches, He is concerned about filling empty hearts.
The true man of God is heartsick, grieved at the worldliness of the Church, grieved at the toleration of sin in the Church, grieved at the prayerlessness in the Church. He is disturbed that the corporate prayer of the Church no longer pulls down the strongholds of the devil.
Revival is when God gets so sick and tired of being misrepresented that He shows Himself.
Finney preached and sometimes the whole congregation would get up and leave! that's good preaching.