John 15:1

(ix. de Trin) He rises in haste to perform the sacrament of His final passion in the flesh, (such is His desire to fulfil His Father's commandment:) and therefore takes occasion to unfold the mystery of His assumption of His flesh, whereby He supports us, as the vine doth its branches: I am the true vine. (ix. de Trin) But He wholly separates this humiliation in the flesh from the form of the Paternal Majesty, by setting forth the Father as the diligent Husbandman of this vine: And My Father is the Husbandman.

"I am the Vine, ye are the branches." What willeth He to imply by the comparison? That the man who gives no heed to His words can have no life, and that the miracles about to take place, would be wrought by the power of Christ. "My Father is the Husbandman." "How then? Doth the Son need a power working within?" Away with the thought! this example does not signify this. Observe with what exactness He goeth through the comparison. He saith not that the "root" enjoys the care of the Husbandman, but, "the branches." And the root is brought in in this place for no other purpose, but that they may learn that they can work nothing without His power, and that they ought to be united with Him by faith as the branch with the vine.

This passage of the Gospel, brethren, where the Lord calls Himself the vine, and His disciples the branches, declares in so many words that the Mediator between God and men, the man Christ Jesus, is the head of the Church, and that we are His members. For as the vine and its branches are of one nature, therefore, His own nature as God being different from ours, He became man, that in Him human nature might be the vine, and we who also are men might become branches thereof. What mean, then, the words, "I am the true vine"? Was it to the literal vine, from which that metaphor was drawn, that He intended to point them by the addition of "true"? For it is by similitude, and not by any personal propriety, that He is thus called a vine; just as He is also termed a sheep, a lamb, a lion, a rock, a corner-stone, and other names of a like kind, which are themselves rather the true ones, from which these are drawn as similitudes, not as realities. But when He says, "I am the true vine," it is to distinguish Himself, doubtless, from that vine to which the words are addressed: "How art thou turned into sourness, as a strange vine?" For how could that be a true vine which was expected to bring forth grapes and brought forth thorns?

(Tr. lxxx. 2) He says this as being the Head of the Church, of which we are the members, the Man Christ Jesus; for the vine and the branches are of the same nature. When He says, I am the true vine, He does not mean really a vine; for He is only called so metaphorically, not literally, even as He is called the Lamb, the Sheep, and the like; but He distinguishes Himself from that vine to whom it is said, How art thou turned into the degenerate plant of a strange vine unto me. (Jer. 11:21) For how is that a true vine, which when grapes are expected from it, produces only thorns? (de Verb. Dom. serm. lix) For we cultivate God, and God cultivates us. But our culture of God does not make Him better: our culture is that of adoration, not of ploughing: His culture of us makes us better. His culture consists in extirpating all the seeds of wickedness from our hearts, in opening our heart to the plough, as it were, of His word, in sowing in us the seeds of His commandments, in waiting for the fruits of piety. (Tr. lxxx. 3) And who is there in this world so clean, that he cannot be more and more changed? Here, if we say that we have no sin, we deceive ourselves. (1 John 1:8) He cleanseth then the clean, i. e. the fruitful, that the cleaner they be, the more fruitful they may be. Christ is the vine, in that He saith, My Father is greater than I; but in that He saith, I and My Father are one, He is the husbandman; not like those who carry on an external ministry only; for He giveth increase within. Thus He calls Himself immediately the cleanser of the branches: Now ye are clean through the word, which I have spoken unto you. He performs the part of the husbandman then, as well as of the vine. But why does He not say, ye are clean by reason of the baptism wherewith ye are washed? Because it is the word in the water which cleanseth. Take away the word, and what is the water, but water? Add the word to the element, and you have a sacrament. Whence hath the water such virtue as that by touching the body, it cleanseth the heart, but by the power of the word, not spoken only, but believed? For in the word itself, the passing sound is one thing, the abiding virtue another. This word of faith is of such avail in the Church of God, that by Him who believes, presents, blesses, sprinkles the infant, it cleanseth that infant, though itself is unable to believe.

"I am," He says, "the true vine, and my Father is the husbandman. Every branch in me that beareth not fruit, He taketh away; and every one that beareth fruit, He purgeth it, that it may bring forth more fruit." Are, then, the husbandman and the vine one? Christ is the vine in the same sense as when He said, "The Father is greater than I;" but in that sense wherein He said, "I and my Father are one," He is also the husbandman. And yet not such a one as those, whose whole service is confined to external labor; but such, that He also supplies the increase from within. "For neither is he that planteth anything, neither he that watereth; but God that giveth the increase." But Christ is certainly God, for the Word was God; and so He and the Father are one: and if the Word was made flesh, that which He was not before, He nevertheless still remains what He was. And still more, after saying of the Father, as of the husbandman, that He taketh away the fruitless branches, and pruneth the fruitful, that they may bring forth more fruit, He straightway points to Himself as also the purger of the branches, when He says, "Now ye are clean through the word which I have spoken unto you." Here, you see, He is also the pruner of the branches, a work which belongs to the husbandman, and not to the vine; and more than that, He maketh the branches His workmen. For although they give not the increase, they afford some help; but not of themselves: "For without me," He says, "ye can do nothing." And listen, also, to their own confession: "What, then, is Apollos, and what is Paul but ministers by whom ye believed, even as the Lord gave to every man. I have planted, Apollos watered." And this, too, "as the Lord gave to every man;" and so not of themselves. In that, however, which follows, "but God gave the increase," He works not by them, but by Himself; for work like that exceeds the lowly capacity of man, transcends the lofty powers of angels, and rests solely and entirely in the hands of the Triune Husbandman. "Now ye are clean," that is, clean, and yet still further to be cleansed. For, had they not been clean, they could not have borne fruit; and yet every one that beareth fruit is purged by the husbandman, that he may bring forth more fruit. He bears fruit because he is clean; and to bear more, he is cleansed still further. For who in this life is so clean as not to be in need of still further and further cleansing? seeing that, "if we say that we have no sin, we deceive ourselves, and the truth is not in us; but if we confess our sins, He is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness;" to cleanse in very deed the clean, that is, the fruitful, that they may be so much the more fruitful, as they have been made the cleaner.