Major Ian Thomas emphasizes that true godliness comes not from our ability to imitate God, but from His ability to reproduce Himself within us. He explains that righteousness is not self-generated but is a result of faith and dependence on God, allowing His divine action to restore us to His image. The sermon clarifies that while we cannot achieve sinless perfection, we can embody Christ's perfection to the extent that we allow Him to work in us. Thomas highlights the importance of a faith-love relationship with Christ, which enables us to access His fullness and live out our divine purpose. Ultimately, it is through Christ's activity in us that we can reign in life and reflect His glory.