The sermon emphasizes the foundational role of faith in the Holy Spirit for understanding and standing on God's promises, particularly as revealed in Ephesians chapter 1. Drawing from Scripture, it explores the Holy Spirit's work in quickening believers, sealing them with an earnest of their inheritance, and transforming them into the image of Christ. The message underscores the importance of the Bible, especially the King James Version, as the ultimate authority, contrasting it with other sources of knowledge and highlighting the Spirit's role in sanctification, comfort, and guidance, ultimately leading to a future redemption and eternal life in God's presence.