The sermon emphasizes that freedom, both civil and spiritual, is not freely given but earned through sacrifice, drawing parallels between America's history and the ultimate sacrifice of Jesus Christ. It underscores the importance of recognizing the cost of freedom, urging listeners to avoid complacency and actively participate in spreading the gospel, while also encouraging Christians to resist temptation and embrace the liberating power of faith, ultimately emphasizing that true freedom lies in obedience to God and a commitment to sharing His message with others.