Note, therefore, that in the case of our Lord Jesus Christ, we speak sometimes of His two natures and sometimes of His one person: and the one or the other is referred to one conception. For the two natures are one Christ, and the one Christ is two natures. Wherefore it is all the same whether we say “Christ energises according to either of His natures,” or “either nature energises in Christ in communion with the other.” The divine nature, then, has communion with the flesh in its energising, because it is by the good pleasure of the divine will that the flesh is permitted to suffer and do the things proper to itself, and because the energy of the flesh is altogether saving, and this is an attribute not of human but of divine energy. On the other hand the flesh has communion with the divinity of the Word in its energising, because the divine energies are performed, so to speak, through the organ of the body, and because He Who energises at once as God and man is one and the same.