Notes on The Gospel According to Luke Chapter 1: Lesson #1 God is the one infinite, eternal, self-existent, and self-sufficient Being; the uncaused cause of all things, possessing all perfections in absolute fullness and unity. He is pure spirit (John 4:24), without body, parts, or passions, and immutable in His being, wisdom, power, holiness, justice, goodness, and truth. God exists as a Trinity: Father, Son, and Holy Spirit—three distinct persons of one indivisible essence—