In his sermon "The Father's Heart," Pastor Kenneth discusses the significance of knowing God as part of the Journey of a Lifetime series. He emphasizes the church's role in making a difference through actions like serving the community. The sermon outlines four main stops on the journey - knowing God, finding freedom, discovering purpose, and making a difference - and stresses the importance of each step building upon the other. Pastor Kenneth encourages deepening one's relationship with God through prayer and scripture and highlights the urgency of sharing faith with others for salvation.