John 15:3

He rises in haste to perform the sacrament of His final passion in the flesh (such is His desire to fulfill 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 does its branches: I am the true vine.

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 you are turned into the degenerate plant of a strange vine to me (Jer 11:21). For how is that a true vine, which when grapes are expected from it, produces only thorns?

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.

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 plowing: 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 plow, as it were, of His word, in sowing in us the seeds of His commandments, in waiting for the fruits of piety.

And forasmuch as Christ was sufficient for Himself, but His disciples needed the help of the Husbandman, of the vine He says nothing, but adds concerning the branches, Every branch in Me that bears not fruit, He takes away. By fruit is meant life, i.e. that no one can be in Him without good works.

The useless and deceitful branches He cuts down for burning.

And inasmuch as even the best of men require the work of the husbandman, He adds, And every branch that bears fruit, He purges it, that it may bring forth more fruit. He alludes here to the tribulations and trials which were coming upon them, the effect of which would be to purge, and so to strengthen them. By pruning the branches we make the tree shoot out the more.

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. He cleans 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 said, My Father is greater than I; but in that He said, I and My Father are one, He is the husbandman; not like those who carry on an external ministry only; for He gives increase within. Thus He calls Himself immediately the cleanser of the branches: Now you are clean through the word, which I have spoken to you. He performs the part of the husbandman then, as well as of the vine. But why does He not say, you are clean by reason of the baptism wherewith you are washed? Because it is the word in the water which cleans. Take away the word, and what is the water, which but water. Add the word to the element, and you have a sacrament. Whence has the water such virtue as that by touching the body, it cleans 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 cleanses that infant, though itself is unable to believe.

You are clean through the word which I have spoken to you, i.e., you have been enlightened by My doctrine, and been delivered from Jewish error.

What I have said is not alien to the passage now engaging us, dealing as it does with the temple and those cast out from it, of which the Saviour says, “The zeal of thy house shall devour Me;” and with the Jews who asked that a sign should be showed them, and the Saviour’s answer to them, in which He combines the discourse on the temple with that on His own body, and says, “Destroy this temple and in three days I will raise it up.” For from this temple, which is the body of Christ, everything that is irrational and savours of merchandise must be driven away, that it may no longer be a house of merchandise. …

20. Lastly, as regards Faustus’ crafty insinuation, that the Old Testament misrepresents God as threatening to come with a sword which will spare neither the righteous nor the wicked, if the words were explained to the Pagan, he would perhaps disagree neither with the Old Testament nor with the New; and he might see the beauty of the parable in the Gospel, which people who pretend to be Christians either misunderstand from their blindness, or reject from their perversity. The great husbandman of the vine uses his pruning-hook differently in the fruitful and in the unfruitful branches; yet he spares neither good nor bad, pruning one and cutting off the other. There is no man so just as not to require to be tried by affliction to advance, or to establish, or to prove his virtue. …

26. Who is that adulterous woman whom the prophet Hosea points out, who said, "I will go after my lovers, that give me my bread and my water, my wool and my flax, and everything that befits me?" Let us grant that we may understand this also of the people of the Jews that went astray; yet whom else are the false Christians (such as are all heretics and schismatics) wont to imitate, except false Israelites? For there were also true Israelites, as the Lord Himself bears witness to Nathanael, "Behold an Israelite indeed, in whom is no guile." But who are true Christians, save those of whom the same Lord said, "He that hath my commandments, and keepeth them, he it is that loveth me?" But what is it to keep His commandments, except to abide in love? Whence also He says, "A new commandment I give unto you, that ye love one another;" and again, "By this shall all men know that ye are my disciple …

Chapter 22. 49. Petilianus said: "It may be urged that Christ said to His apostles, as you are constantly quoting against us, ‘He that is washed needeth not save to wash his feet, but is clean every whit.’ Now if you discuss those words in all their fullness, you are bound by what immediately follows. For this is what He said, in His very words: ‘He that is washed needeth not save to wash his feet, but is clean every whit: and ye are clean, but not all. But this he said on account of Judas, who should betray Him; therefore said He, Ye are not all clean.’ Whosoever, therefore, has incurred the guilt of treason, has forfeited, like you, his baptism. Again, after that the betrayer of Christ had himself been condemned, He thus more fully confirmed His words to the eleven apostles: ‘Now are ye clean through the word which I have spoken unto you. …

Ver. 3 . “Now ye are clean through the word which I have spoken unto you.” Seest thou how He introduceth Himself as tending the branches? “I have cleansed you,” He saith; yet above He declareth that the Father doth this. But there is no separation between the Father and the Son. “And now your part also must be performed.” Then to show that He did not this as needing their ministry, but for their advancement, He addeth,

Ver. 17 . “Sanctify them through Thy truth.” “Make them holy by the gift of the Spirit, and of right doctrines.” As when He saith, “Ye are clean through the word which I spake unto you” ( c. xv. 3 ), so now He saith the same thing, “Instruct them, teach them the truth.” “And yet He saith that the Spirit doth this. How then doth He now ask it from the Father?” That thou mayest again learn their equality of Honor. For right doctrines asserted concerning God sanctify the soul. And if He saith that they are sanctified by the word, marvel not. And to show that He speaketh of doctrines, He addeth,

X. Sixthly, let it be asserted that it is written, The Son can do nothing of Himself, but what He seeth the Father do. The solution of this is as follows: Can and Cannot are not words with only one meaning, but have many meanings. On the one hand they are used sometimes in respect of deficiency of strength, sometimes in respect of time, and sometimes relatively to a certain object; as for instance, A Child cannot be an Athlete, or, A Puppy cannot see, or fight with so and so. Perhaps some day the child will be an athlete, the puppy will see, will fight with that other, though it may still be unable to fight with Any other. Or again, they may be used of that which is Generally true. For instance, A city that is set on a hill cannot be hid; while yet it might possibly be hidden by another higher hill being in a line with it. …

53. Moreover the surpassing excellence of the nature of the Spirit is to be learned not only from His having the same title as the Father and the Son, and sharing in their operations, but also from His being, like the Father and the Son, unapproachable in thought. For what our Lord says of the Father as being above and beyond human conception, and what He says of the Son, this same language He uses also of the Holy Ghost. “O righteous Father,” He says, “the world hath not known Thee,” meaning here by the world not the complex whole compounded of heaven and earth, but this life of ours subject to death, and exposed to innumerable vicissitudes. …