Major Ian Thomas emphasizes the importance of truly knowing Christ rather than just knowing the Scriptures, as the Pharisees did. He highlights that Jesus, though fully God, lived as a man to demonstrate what true humanity looks like, allowing God to work through Him. Thomas encourages believers to understand that the life of Christ within them is essential for living out their faith authentically. He asserts that Jesus is the truth about God and man, and that through Him, believers can be restored to their true humanity. The sermon calls for a new encounter with Jesus, urging Christians to let God be God in their lives.