Wherefore Supr., bk. ii. ch. 22. in the case of the Father and Son and Holy Spirit we recognise, from their sameness in will and energy, their sameness in nature. But in the case of the divine dispensation οἰκονομίας, incarnation. we recognise from their difference in will and energy the difference of the two natures, and as we perceive the difference of the two natures we confess that the wills and energies also are different. For just as the number of the natures of one and the same Christ, when considered and spoken of with piety, do not cause a division of the one Christ but merely bring out the fact that the difference between the natures is maintained even in the union, so it is with the number of wills and energies that belong essentially to His natures. (For He was endowed with the powers of willing and energising in both natures, for the sake of our salvation.) It does not introduce division: God forbid! but merely brings out the fact that the differences between them are safeguarded and preserved even in the union. For we hold that wills and energies are faculties belonging to nature, not to subsistence; I mean those faculties of will and energy by which He Who wills and energises does so. For if we allow that they belong to subsistence, we will be forced to say that the three subsistences of the Holy Trinity have different wills and different energies.