In this sermon, the preacher emphasizes the importance of following Jesus and the path that leads to life. He highlights the sacrifice Jesus made by leaving heaven and giving up his glory to bring salvation to all. The preacher references the prophet Joel and Peter's preaching on Pentecost to emphasize the coming of the kingdom. He also mentions John the Baptist's message of repentance and Jesus' preaching about the kingdom of heaven. The sermon emphasizes the need for people to learn the truth of the gospel and strive for salvation through Jesus Christ. The preacher also references Daniel and Isaiah to highlight the eternal nature of God's kingdom and the invitation for all nations to come and worship Him.