Charles Finney emphasizes the significance of God's promises in his sermon 'The Promises of God--No. 5', explaining that these promises are designed to help believers partake in the divine nature and escape worldly corruption. He identifies reasons why these promises often go unfulfilled, including ignorance of their existence, misunderstanding their application, and a lack of faith in their full meaning. Finney urges the Church to recognize and claim these promises, asserting that they are conditional upon belief and personal application. He encourages believers to anchor their faith in the promises of God, highlighting the importance of perseverance and the need to overcome personal limitations and doubts. Ultimately, he calls for a deeper understanding and acceptance of the fullness of God's grace and the transformative power of His promises.