This sermon continues a series on church membership and living as citizens of God's kingdom. It focuses on two essential pillars of the church: prayer and service. Pastor Jay emphasizes the importance of prayer as a spiritual discipline and an expression of dependence on God. He also highlights service as a crucial aspect of Christian living, rooted in Christ's example of humility and selflessness. The sermon encourages believers to reject self-centeredness, embrace their spiritual gifts, and serve one another as a way of serving Christ himself.