In this sermon, the speaker emphasizes the importance of dedicating time to God's work, even amidst busy daily lives. He uses the example of a man who traveled from Persia to Jerusalem, passing through enemy territory, to highlight the commitment and sacrifice required to serve God. The speaker encourages the audience to be fearless in their labor for God, willing to spend time in the night watch and early mornings. He also mentions the thoroughness of the man's survey of Jerusalem's walls and gates, emphasizing the importance of careful consideration in God's work. The sermon concludes with a reference to the fish gate in the walls of the holy city, symbolizing the invitation for all to come to Jesus in the church of God.

Lewis Sperry Chafer delves into the Spirit's advent into the world, emphasizing the various dispensations and revealed purposes of God. The Holy Spirit's presence in the world before and after the first advent of Christ is explored, highlighting His continuous work in and through the people of God. The progressive ministry of the Spirit during Christ's earthly ministry and the present age of the Church is discussed, focusing on His abode in believers and the growth of the spiritual temple. The future departure of the Spirit from the world and His unique ministry during the Kingdom age are also examined.