“God manifest in the flesh” (1Ti 3:16). Christ had a twofold substance, divine and human, yet not a twofold subsistence; both natures make but one Christ. A scion may be grafted into another tree - a pear-tree into an apple; which, though it bear different fruits, is but one tree; so Christ’s manhood is united to the Godhead in an ineffable manner; yet though there are two natures, yet but one person. This union of the two natures in Christ was not by transmutation, the divine nature changed into the human, or the human into the divine; nor by mixture, the two natures mingled together, as wine and water are mixed; but both the natures of Christ remain distinct, and yet make not two distinct persons, but one person; the human nature not God, yet one with God.
Thomas Boston (1620-1686)
Thomas Boston (1620-1686)