God, then, being not a subject for demonstration, cannot be the object of science. But the Son is wisdom, and knowledge, and truth, and all else that has affinity thereto. He is also susceptible of demonstration and of description. And all the powers of the Spirit, becoming collectively one thing, terminate in the same point—that is, in the Son. But He is incapable of being declared, in respect of the idea of each one of His powers. And the Son is neither simply one thing as one thing, nor many things as parts, but one thing as all things; whence also He is all things. For He is the circle of all powers rolled and united into one unity. Wherefore the Word is called the Alpha and the Omega, of whom alone the end becomes beginning, and ends again at the original beginning without any break. Wherefore also to believe in Him, and by Him, is to become a unit, being indissolubly united in Him; and to disbelieve is to be separated, disjoined, divided.