The words, “The head of every man is Christ…and the head of Christ is God” misused by the Arians, are now turned back against them, to their confutation. Next, another passage of Scripture, commonly taken by the same heretics as a ground of objection, is called in to show that God is the Head of Christ, in so far as Christ is human, in regard of His Manhood, and the unwisdom of their opposition upon the text, “He who planteth and He who watereth are one,” is displayed. After which explanations, the meaning of the doctrine that the Father is in the Son, and the Son in the Father, and that the faithful are in Both, is expounded.