John Gill expounds on the doctrine of the Trinity, asserting that the Godhead consists of three distinct persons—Father, Son, and Holy Spirit—while maintaining the unity of the divine essence. He provides scriptural evidence for this plurality, citing various passages that use plural terms and expressions when referring to God, such as 'Elohim' and 'us' in creation. Gill emphasizes that the Trinity is not merely a theological concept but is essential to understanding God's nature and His works in creation, providence, and grace. He argues that the distinct roles of each person in the Godhead are evident in the acts of salvation and the worship practices of believers. Ultimately, Gill concludes that the Trinity is foundational to the Christian faith and the experience of salvation.

John Gill emphasizes the essential doctrine of the unity of God, asserting that there is only one true God, a belief foundational to both reason and revelation. He argues against polytheism and various misconceptions about the nature of God, including Arianism and Sabellianism, while affirming the distinct persons of the Trinity—Father, Son, and Holy Spirit—are all one God. Gill supports his claims with numerous scriptural references, highlighting that the unity of God is crucial for proper worship and understanding of faith. He concludes that this doctrine not only clarifies the object of worship but also promotes unity among believers.

John Wesley emphasizes the unity of God, asserting that there is only one God, one religion, and one true happiness for all humanity. He explains that God is eternal, omnipresent, all-perfect, and omnipotent, and that true religion consists of loving God and our neighbors. Wesley warns against the many idols that distract people from seeking happiness in God, including false religions and worldly desires. He concludes that genuine happiness and religion stem from a relationship with God, which leads to benevolence towards others. The sermon calls for a return to the foundational truth that we are made to find our happiness in God alone.