Father is of one substance and the Son of another; on the contrary, they are of one and the same substance. What is more, just as we say that the fire is made visible by the light coming from it, yet do not make the fire’s light a subsidiary organ of the fire but, rather, a natural power; in the same way, we say that the Father does all things whatsoever through His only-begotten Son, not as through a subsidiary organ, but as through a natural and distinctly subsistent force. And just as we say that