R.A. Torrey emphasizes that Jesus is the Light of the World, asserting His divine nature and the necessity of believing in Him to escape the darkness of sin. He explores the implications of Jesus' claim, highlighting the importance of knowing both the Father and the Son for true understanding and salvation. Torrey warns that dying in sin leads to eternal separation from God, urging listeners to seek Jesus while He can be found. The sermon contrasts the light of Christ with the darkness of disbelief, illustrating the consequences of rejecting His message. Ultimately, Torrey calls for a commitment to follow Jesus, the true source of light and life.