Professor A.A. Hodge adds in his Evangelical Theology  (B.O.T.T., Edinburgh, 1976 ed., pp. 188f): “The Scriptures…in every possible way…set Him before us as one Person… This amazing personality does not centre in His humanity…. It was not made by adding manhood to Godhead…. ]
"A new Person is not substituted for the second Person of the Trinity, neither is a fourth Person added to the Trinity. But the Person of Christ…through the instrumentality of the womb of the virgin took a human nature (not a man, but the seed of man, humanity in the germ) into personal union with Himself. The Person is eternal and divine. The humanity is introduced into it….