WESTMINSTER CONFESSION OF FAITH
CHAPTER 8 – Of Christ the Mediator
I. It pleased God, in his eternal purpose, to choose and ordain the Lord Jesus, his only begotten Son, to be the Mediator between God and man; the Prophet, Priest, and King; the Head and Saviour of his Church; the Heir of all things; and Judge of the world: unto whom he did from all eternity give a people to be his seed, and to be by him in time redeemed, called, justified, sanctified, and glorified.
II. The Son of God, the second person in the Trinity, being very and eternal God, of one substance, and equal with the Father, did, when the fulness of time was come, take upon him man’s nature, with all the essential properties and common infirmities thereof, yet without sin; being conceived by the power of the Holy Ghost, in the womb of the Virgin Mary, of her substance. So that two whole, perfect, and distinct natures, the Godhead and the manhood, were inseparably joined together in one person, without conversion, composition, or confusion. Which person is very God and very man, yet one Christ, the only Mediator between God and man.