All those sons of fallen Adam who by faith yield to the transfiguring power assume the essential attributes of the second Adam, the Lord from heaven. To adopt the phrase of modern philosophy, a new race is to be evolved. In all evolution there must first be involution. You must put into the first term all that you take out. Jesus Christ is the first term. "And it pleased the Father that in Him should all fullness dwell." "For in Him dwelleth all the fullness of the Godhead bodily."
There is one word in the Greek Testament that exactly describes this relation of Jesus to the development of the sons of God. The term ἀρχηγός (archegos) is unfortunately translated by three different English words in the only four passages in which it occurs. It is compounded of two Greek words, signifying, beginning and leading. The best Saxon rendering is file-leader. Thus declares Peter in his crimination of the Jews: "And killed the file-leader of life, whom God hath raised from the dead" (Acts iii. 15). Again, before the Sanhedrim he utters these sublime words: "Him hath God exalted with (or at) His right hand to be a file-leader and a Saviour, for to give repentance to Israel, and forgiveness of sins" (Acts v. 31). The office of Christ as the beginner of a glorious series is strikingly set forth in Heb. ii. 10: "For it became Him for whom are all things, and by whom are all things, in bringing many sons unto glory, to make the file-leader of their salvation perfect through sufferings." Here we see, not with the eye of a poet's fancy, but with the anointed vision of inspiration, Jesus Christ marching at the head of a long column, "many sons," leading them into the wide open portals of heaven, till they stand at last in the blaze of its innermost glory, a circle around the throne upon which He sits down. Again, in Heb. xii. 2, we have this fact as the ground of an earnest exhortation to Christian fidelity: "Looking unto Jesus, the file-leader and finisher of our faith; who, for the joy that was Set before Him, endured the cross, despising the shame, and is set down at the right hand of God." We have in these four passages the divine conception of our adorable Saviour as the head of the new order, the sons of God, evolving these from the sons of the fallen Adam. "To as many as received Him." says the evangelist, "gave he privilege to become the sons of God."
— Edited from Mile-Stone Papers Part 1 Chapter 1.