In this sermon, the preacher emphasizes the importance of self-examination and the danger of being deceived about one's spiritual state. He challenges the listeners to honestly assess their hearts and actions, questioning whether they are truly converted and living in obedience to God. The preacher highlights the tragic state of those who may think they are rich in grace but are actually spiritually poor, blind, and naked. He urges the conscience to give a true report of one's condition and calls for a definite answer regarding one's relationship with God. The sermon concludes with a plea to take action and escape the consequences of remaining in a sinful state.

Charles Finney addresses the 'Weakness of Heart' in the Church, emphasizing the importance of understanding the heart as the ruling disposition of the will. He explains that a weak heart is not divided or wicked but lacks the strength to resist temptation, leading to various evidences of weakness such as susceptibility to sin and difficulty in prayer. Finney outlines causes of this weakness, including ignorance and unbelief, and presents waiting on the Lord as the remedy, which involves active prayer, repentance, and a deepening relationship with God. He concludes that true strength of heart comes from an increase in knowledge, faith, and love towards God, enabling believers to resist temptation effectively.