T. Austin-Sparks emphasizes the central theme of life in the book of Revelation, contrasting the new creation Man, Jesus Christ, with the fallen state of humanity. He illustrates how the narrative from Genesis to Revelation revolves around the tree of life and the significance of living in Christ, who overcame death and offers eternal life to believers. Sparks highlights that the testimony of Jesus is embodied in the church, which faces opposition from death but ultimately will triumph through the life of Christ. He encourages believers to hold onto this life, despite trials, as the ultimate victory belongs to those who are in Christ. The sermon concludes with a call to embrace life and reject the temptations of death.