They declared that the human nature assumed by God the Word is to be regarded as consisting of not a perfect body only, but also of a perfect soul, even as was taught by the ancient Church philosophers. As the Church had been agitated by questions concerning the terms “substance” and “hypostasis,” and the contentions and disputes about these words had been frequent, they decreed, and, as I think, wisely, that these terms should not henceforth at the beginning be used in reference to God, except in refutation of the Sabellian tenet; lest from the paucity of terms, one and the same thing might appear to be called by three names; but that one might understand each by its peculiar term in a threefold way.