St. Gregory the Theologian, Oration 38, Section 15:
He was sent, but as human, for he was twofold. For he was tired and hungry and thirsty and endured agony and wept through the law of the body, but if he underwent these things also as God, what of it? Consider the good will of the Father to be sent forth, and to it the Son ascribes his own activities, both as honoring the timeless Beginning and so as not to seem to be a rival god. For indeed Scripture says that he was given up, but it is also written that he gave himself up; and he was raised and taken up to heaven by the Father, but he also resurrected himself and ascended there again. For one is the Father’s good will, the other his own power. You speak of what belittles him, but you overlook what exults him; you recognize that he suffered, but you do not add that it was voluntary. It is as if the Word still suffers now! By some he is honored as God but confused with the Father; by others he is dishonored as flesh and separated from him. Against which is he more angry? Rather whom must he pardon more? Those who unite Father and the Son wrongly or those who divide them? For the former would need to distinguish and the latter would need to conjoin; the one in regard to number, the other in regard to divinity. Do you take offense at the flesh? So did the Jews. Do you also call him a Samaritan? I will be silent about the rest. Do you disbelieve in his divinity? This even the demons do not do. O you who are more unbelieving than demons and more senseless than Jews! The latter regarded “Son” as a term denoting equality of honor, the former knew that God drove them out, for they were persuaded by what they suffered. But you neither accept the equality nor confess the divinity. It would have been better for you to be circumcised and possessed by a demon, if I may say something ridiculous, rather than in uncircumcision and good health to be in a state of wickedness and atheism.