In this sermon, the preacher emphasizes the urgency of preaching the gospel without compromise. He highlights the spiritual blindness that the God of this world has caused, regardless of one's education or intellectual understanding. The preacher shares a personal experience of teaching a chorus to soldiers from different armies, witnessing their emotional response and the impact of the message. He then transitions to discussing the infallible and immutable word of God, emphasizing its eternal significance. The sermon concludes with a reminder of the importance of completing a project and a reference to Proverbs and Timothy in relation to the preacher's invitation to speak.