The central message of this sermon is that stewardship of time is not about managing or manipulating time itself, but rather about managing one's attitudes and activities in relation to their purpose. The speaker argues that everyone has the same amount of time, 24 hours a day, and that our perceptions and behaviors are what get managed, not time itself. Jesus is presented as a model for effective stewardship of time, demonstrating a sense of calmness, purpose, and mission. The speaker suggests that knowing one's purpose in life makes all other decisions simple, and that this kind of focus is rare in human experience. The takeaway from this sermon is that true productivity and effectiveness in using one's time come not from managing time itself, but from living with a clear sense of purpose and direction. This idea advances the belief that our lives are not just about getting things done, but about living according to a higher calling or mission.