Rolfe Barnard delivers a powerful sermon titled 'Goodbye God,' emphasizing the spiritual decline in America and the urgent need for repentance. He draws parallels between the story of Jonah and the current state of rebellion against God, highlighting how many are fleeing from His presence and commands. Barnard warns that this rebellion leads to destruction and urges listeners to recognize the importance of holy living as evidence of true salvation. He challenges the complacency of Christians and calls for a revival of genuine faith and obedience to God. The sermon serves as a wake-up call to confront the spiritual apathy and rebellion prevalent in society today.