God is one, in one unique, undivided, and inseparable essence; a Trinity of Hypostases359 that can be distinguished from one another; eternal Hypostases with no beginning, belonging to a single essence, and having a single will. The apostle Paul speaks of “one God and Father of all, who is above all, and through all, and in you all” (Eph. 4:6). “Above all” refers to the Father who is the source of all; “and through all” refers to the Son or “Christ the power of God and the wisdom of God” (1 Cor. 1:24); and “in you all” refers to the Holy Spirit who perfects all and sanctifies all.