The sermon centers on the declaration that Jesus Christ is the sole sovereign of the church, drawing a parallel between the historical conviction of the Scottish Covenanters and the theological message of Psalm 72. It highlights the story of Reverend Thomas Hogg, a Covenanter minister imprisoned for his refusal to acknowledge King Charles II as head of the church, to illustrate the cost of confessing Christ's exclusive authority. The exposition interprets Psalm 72 not as a prayer for Solomon himself, but as a prophetic petition for the coming Messiah, emphasizing that His name will endure as long as the sun. The message encourages believers to view the name of Jesus as a source of light, life, and salvation that remains constant amidst changing generations and political powers. Ultimately, the sermon affirms that every knee will bow to the name of Jesus, who alone provides redemption and whose kingship is eternal.