All Christians agree that God is Supreme Being. Indeed, God is so generally acknowledged to be the supreme, infinite, governing power that we find part of the definition of God in Webster's International Dictionary to be, "The Supreme Being; the eternal and infinite Spirit, Creator and Sovereign of the universe."
Mary Baker Eddy, the Discoverer and Founder of Christian Science, says in "Science and Health with Key to the Scriptures" (p. 127) "Christian Science reveals God, not as the author of sin, sickness, and death, but as divine Principle, Supreme Being, Mind, exempt from all evil." Christian Scientists, therefore, acknowledge the supremacy, the infinity, the oneness and allness of God, Spirit, Mind. They acknowledge God as Supreme Being, and they understand man and the universe to be the infinite spiritual expression, idea, or reflection of the Supreme Being.
Writing of the indivisibility of Being, God, on page 56 of "Retrospection and Introspection," Mrs. Eddy says: "Whatever diverges from the one divine Mind, or God,—or divides Mind into minds, Spirit into spirits, Soul into souls, and Being into beings,—is a misstatement of the unerring divine Principle of Science, which interrupts the meaning of the omnipotence, omniscience, and omnipresence of Spirit, and is of human instead of divine origin." And she continues on the same page: "All consciousness is Mind, and Mind is God. Hence there is but one Mind; and that one is the infinite good, supplying all Mind by the reflection, not the subdivision, of God." Therefore, it will be seen that one of the chief characteristics of Being is its indivisibility. Supreme Being is one Mind, one Life, one Spirit, Soul, intelligence. The spiritual universe, including individual man, is the indivisible expression of Life or Being, and is inseparable from and one with its Principle. Nothing can come between Mind and its idea, Life and its expression, God and man. They are one in being. They constitute the unity, the infinity, of good.