III. What is the union which exists between the two natures of Christ and how was it made?

The union which exists between the two natures in Christ was made by the operation of the Holy Ghost in the very conception, in such a manner that the two natures subsist in the single person of Christ, without confusion, without change, indivisible, and inseparable, as it is expressed in the Calcedonian creed. It is called the hypostatical or personal union, because the two natures that are different are united in a mysterious manner in one person, whilst the essential properties of each nature are retained whole and entire. It is on account of this union that Christ is called, and is true God and man in respect to the distinct natures of which he is possessed: he is very God according to the divine, and very man according to the human nature. “ That holy thing which shall be born of thee shall be called the Son of God.” “In him dwelleth all the fullness of the Godhead bodily.” “ The word was made flesh.” “He took upon him the seed of Abraham.” “God was manifested in the flesh.” (Luke 1:35. Col. 2:9. John 1:14. Heb. 2:16. 1 Tim. 3:16.)