". . . but his human will was lifted up by the omnipotency of his divinity, and his divine will was revealed to men through his humanity. Therefore it is necessary to refer to him as God such things as are divine, and as man such things as are human; and each must be truly recognized through the hypostatic union of the one and the same our Lord Jesus Christ . . ."
- from the letter of Pope Agatho, Pope of Old Rome, addressed to the Sixth Ecumenical Council (Constantinople, A.D. 680-1) (NPNF II 14:334)