In this sermon, the speaker discusses the concept of free love and expresses suspicion towards anything that is offered for free. The speaker suggests that free things often come with strings attached or lack value altogether. The sermon also explores the different types of love that exist, such as love for the universe, mankind, and the underprivileged. The speaker emphasizes the importance of sharing God's love with people we may not naturally like. The sermon concludes with examples of love that starts strong but ends weak, highlighting the need for enduring love.