10. If, therefore, the Apostle Paul, although he still bare the burden of the body, which is subject to corruption and presseth down the soul, and although he still saw only in part and in an enigma, wishing to depart and be with Christ, and groaning within himself, waiting for the adoption, to wit, the redemption of his body, yet was able to preach the Lord Jesus Christ significantly, in one way by his tongue, in another by epistle, in another by the sacrament of His body and blood (since, certainly, we do not call either the tongue of the apostle, or the parchments, or the ink, or the significant sounds which his tongue uttered, or the alphabetical signs written on skins, the body and blood of Christ; but that only which we take of the fruits of the earth and consecrate by mystic prayer, and then receive duly to our spiritual health in memory of the passion of our Lord for us: and this, although it is brought by the hands of men to that visible form, yet is not sanctified to become so great a sacrament, except by the spirit of God working invisibly; since God works everything that is done in that work through corporeal movements, by setting in motion primarily the invisible things of His servants, whether the souls of men, or the services of hidden spirits subject to Himself): what wonder if also in the creature of heaven and earth, of sea and air, God works the sensible and visible things which He wills, in order to signify and manifest Himself in them, as He Himself knows it to be fitting, without any appearing of His very substance itself, whereby He is, which is altogether unchangeable, and more inwardly and secretly exalted than all spirits whom He has created?