13. He applies to the mystic body of Christ, the two qualities which he predicated of the natural body in the preceding verse—viz., that it is one; and, secondly, that it is composed of many and different members. Applying the first part in this verse, he proves that the mystic body of Christ is one. “Baptized into one body,” i.e., by baptism ingrafted on the mystic body of Christ. “And in one spirit we have been all made to drink.” The common Greek is, εἰς ἑν πνευμα, into one spirit. The interpretation