T. Austin-Sparks emphasizes the ongoing conflict between the natural and supernatural realms, arguing that what humanity often deems 'natural' is, from God's perspective, 'unnatural.' He highlights the necessity of supernatural intervention for redemption, beginning with the miraculous birth of Christ, which signifies a new order of humanity. Sparks asserts that the works of Christ, including His miracles, are not merely acts of power but profound signs that reveal His divine nature and authority. The sermon underscores that true salvation and transformation can only come through the supernatural, as the natural man cannot comprehend the things of the Spirit. Ultimately, the message calls for recognition of the supernatural in both the birth and works of Christ as essential to understanding the fullness of the Gospel.