In this sermon, the speaker discusses the gathering of the elect and the impending judgment. He emphasizes the importance of believers being alert and watchful for the coming of the Master. The speaker also addresses the concept of a secret rapture and questions its presence in the New Testament. He highlights the significance of the sign of the Son of Man and its mention in both the Old and New Testaments. The sermon concludes with a discussion on different views regarding the timing of the rapture.