C.H. Spurgeon addresses the alarming trend of progressive theology, which he views as a dangerous deviation from the true gospel. He critiques those who openly embrace heretical beliefs, suggesting that many have long harbored these errors before publicly declaring them. Spurgeon emphasizes the importance of maintaining the integrity of the gospel, warning against the notion that it can be improved or altered by human wisdom. He calls for vigilance against the infiltration of false doctrines within the church and encourages believers to stand firm in their faith, even amidst widespread apostasy. Ultimately, he reassures the faithful that the battle against error is ongoing, but with God's help, truth will prevail.

C.H. Spurgeon reflects on the life and legacy of Joseph Tritton, a man of deep faith and commitment to evangelical teachings, whose hymns and service to the Baptist Missionary Society left a lasting impact. Spurgeon emphasizes Tritton's refined spirit and the importance of preserving his works as a testament to his faithfulness. He also addresses the 'Down-Grade' controversy, urging the church to hold firmly to the truth of the gospel amidst rising false teachings. Spurgeon and others express their support for the defense of scriptural truth, highlighting the need for vigilance against heresy. The sermon concludes with a call for unity among believers in standing for the faith once delivered to the saints.