C.H. Spurgeon emphasizes the goodness of the light that God has created and His special attention to it, noting that God sees the light in believers with pleasure and complacency. He reassures that even when believers struggle to see their own light due to sin and despair, God always recognizes it as His handiwork. This divine observation brings comfort, as it assures believers that their light is preserved by God's grace, regardless of their feelings of darkness. Spurgeon highlights that the light within is a promise of the eternal day to come, where God's glory will be fully revealed.

Harry Ironside emphasizes the importance of having a full assurance of understanding in the Christian faith, as expressed in Paul's letter to the Colossians. He explains that believers will face doubts and struggles due to their dual nature, but through diligent study of the Scriptures, they can find clarity and strength. Ironside shares anecdotes, including the story of an Irishman who found joy in reading the Bible for himself, illustrating the necessity of personal engagement with God's Word. He encourages Christians to recognize their identity in Christ and to seek spiritual growth through the truth revealed in Scripture. Ultimately, he reassures believers that their life is secure in Christ, who is seated at the right hand of God.

F.B. Meyer emphasizes the divine stirring of Cyrus as a fulfillment of prophecy, highlighting the importance of prayer and obedience in responding to God's call. He reflects on the necessity of assurance through the Holy Spirit, the significance of establishing an altar for consecration, and the dangers of compromising with the world. Meyer encourages believers to trust in God's oversight and to remain steadfast in their mission, even amidst opposition. He concludes with a call to support those who lead in faith, recognizing that collective encouragement can lead to significant outcomes.

John Gill emphasizes the significance of Christ as the chief cornerstone, as prophesied in Isaiah 28:16, highlighting His divine selection and preciousness to both God and humanity. He explains that Christ not only strengthens and adorns the spiritual building of the church but also unites believers across all ages and places. Gill reassures that those who believe in Christ will not be ashamed or confounded, as their faith provides safety and confidence both in this life and the next. The sermon underscores the importance of recognizing Christ's role in our spiritual lives and the assurance that comes from trusting in Him.

A.W. Tozer emphasizes that new Christians must quickly learn that Jesus Christ is all they need for their spiritual journey. He asserts that true belief in Christ allows individuals to declare their independence from external validations and reassurances. Tozer critiques modern evangelicalism for its lack of assurance and tendency to seek external evidence to support faith, which can lead to doubt when faced with opposing views from science and philosophy. He encourages believers to turn to the Scriptures, particularly the books of John, Ephesians, Colossians, and Hebrews, to find the assurance they seek in Christ alone.