10824. The truth that the Lord's Divinity and Humanity constitute one Person can also be deduced from the creed accepted in the whole Christian world, which says something like this,
Although Christ is God and Man, yet He is not two, but is one Christ. He is indeed altogether one, and one Person; for as body and soul is one man, so also God and Man is one Christ.
All this is taken from the Athanasian Creeda.