John Gill emphasizes the holiness of God as an essential and immutable attribute that defines His nature and essence. He explains that God's holiness is the foundation of His perfection, distinguishing Him from all creation, which is inherently flawed. Gill illustrates how God's holiness is evident in His works of creation, providence, and grace, asserting that it is the source of all true righteousness and purity. He also highlights the holiness of the Father, Son, and Holy Spirit, affirming that all three persons of the Trinity share this divine attribute. Ultimately, Gill calls believers to reflect God's holiness in their lives, as they are called to be holy as He is holy.

John Gill emphasizes the sufficiency and perfection of God, explaining that God is self-sufficient and does not require anything from creation to sustain His happiness or existence. He highlights that God's nature is perfect and complete, lacking nothing, and that all goodness and perfection originate from Him. Gill further illustrates that while God is the source of all blessings and grace, He does not gain anything from human worship or obedience, as these acts are for the benefit of humanity rather than for God Himself. Ultimately, God's perfection and all-sufficiency assure believers that He is capable of meeting all their needs and fulfilling His promises.