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19. And for their sales I sanctify myself. By these words he explains more clearly from what source that sanctification flows, which is completed in us by the doctrine of the Gospel. It is, because he consecrated himself to the Father, that his holiness might come to us; for as the blessing on the first-fruits is spread over the whole harvest, so the Spirit of God cleanses us by the holiness of Christ and makes us partakers of it. Nor is this done by imputation only, for in that respect he is said to have been made to us righteousness; but he is likewise said to have been made to us sanctification, (1 Corinthians 1:30,) because he has, so to speak, presented us to his Father in his own person, that we may be renewed to true holiness by his Spirit. Besides, though this sanctification belongs to the whole life of Christ, yet the highest illustration of it was given in the sacrifice of his death; for then he showed himself to be the true High Priest, by consecrating the temple, the altar, all the vessels, and the people, by the power of his Spirit.

20. And I ask not for these only. He now gives a wider range to his prayer, which hitherto had included the apostles alone; for he extends it to all the disciples of the Gospel, so long as there shall be any of them to the end of the world. This is assuredly a remarkable ground of confidence; for if we believe in Christ through the doctrine of the Gospel, we ought to entertain no doubt that we are already gathered with the apostles into his faithful protection, so that not one of us shall perish. This prayer of Christ is a safe harbour, and whoever retreats into it is safe from all danger of shipwreck; for it is as if Christ had solemnly sworn that he will devote his care and diligence to our salvation.

He began with his apostles, that their salvation, which we know to be certain, might make us more certain of our own salvation; and, therefore, whenever Satan attacks us, let us learn to meet him with this shield, that it is not to no purpose that the Son of God united us with the apostles, so that the salvation of all was bound up, as it were, in the same bundle. There is nothing, therefore that ought more powerfully to excite us to embrace the Gospel; for as it is an inestimable blessing that we are presented to God by the hand of Christ to be preserved from destruction, so we ought justly to love it, and to care for it above all things else. In this respect the madness of the world is monstrous. All desire salvation; Christ instructs us in a way of obtaining it, from which if any one turn aside, there remains for him no good hope; and yet scarcely one person in a hundred deigns to receive what was so graciously offered.

For those who shall believe on me, We must attend to this form of expression. Christ prays for all who shall believe in him. By these words he reminds us of what we have sometimes said already, that our faith ought to be directed to him. The clause which immediately follows, through their word, expresses admirably the power and nature of faith, and at the same time is a familiar confirmation to us who know that our faith is founded on the Gospel taught by the apostles. Let the world then condemn us a thousand times, this alone ought to satisfy us, that Christ acknowledges us to be his heritage and pleads with the Father for us.

But woe to the Papists, whose faith is so far removed from this rule, that they are not ashamed to vomit out this horrid blasphemy, that there is nothing in Scripture but what is ambiguous, and may be turned in a variety of ways. The tradition of the Church is therefore their only authoritative guide to what they shall believe. But let us remember that the Son of God, who alone is competent to judge, does not approve of any other faith ¹²³¹²³     “Qui seul en peut et doit prononcer, n’approve point d’autre foy.” than that which is drawn from the doctrine of the apostles, and sure information of that doctrine will be found no where else than in their writings.

We must also observe that form of expression, to believe through the word, which means that faith springs from hearing, because the outward preaching of men is the instrument by which God draws us to faith. It follows, that God is, strictly speaking, the Author of faith, and men are the ministers by whom we believe, as Paul teaches (1 Corinthians 3:5.)

21. That all may be one. He again lays down the end of our happiness as consisting in unity, and justly; for the ruin of the human race is, that, having been alienated from God, it is also broken and scattered in itself. The restoration of it, therefore, on the contrary, consists in its being properly united in one body, as Paul declares the perfection of the Church to consist in

believers being joined together in one spirit and says that apostles, prophets, evangelists, and pastors, were given, that they might edify and restore the body of Christ, till it came to the unity of faith; and therefore he exhorts believers to grow into Christ, who is the Head, from whom the whole body joined together, and connected by every bond of supply, according to the operation in the measure of every part, maketh increase of it to edifcation,
(Ephesians 4:3, 11-16.)

Wherefore, whenever Christ speaks about unity, let us remember how basely and shockingly, when separated from him, the world is scattered; and, next, let us learn that the commencement of a blessed life is, that we be all governed, and that we all live, by the Spirit of Christ alone.

Again, it ought to be understood, that, in every instance in which Christ declares, in this chapter, that he is one with the Father, he does not speak simply of his Divine essence, but that he is called one as regards his mediatorial office, and in so far as he is our Head. Many of the fathers, no doubt, interpreted these words as meaning, absolutely, that Christ is one with the Father, because he is the eternal God. But their dispute with the Arians led them to seize on detached passages, and to torture them out of their natural meaning, in order to employ them against their antagonists. ¹²⁴¹²⁴     “Et les ont tirees hors dc leur simple sens pour s’en servir contre les adversaires.” Now, Christ’s design was widely different from that of raising our minds to a mere speculation about his hidden Divinity; for he reasons from the end, by showing that we ought to be one, otherwise the unity which he has with the Father would be fruitless and unavailing. To comprehend aright what was intended by saying, that Christ and the Father are one, we must take care not to deprive Christ of his office as Mediator, but must rather view him as he is the Head of the Church, and unite him with his members. Thus will the chain of thought be preserved, that, in order to prevent the unity of the Son with the Father from being fruitless and unavailing, the power of that unity must be diffused through the whole body of believers. Hence, too, we infer that we are one with the Son of God; ¹²⁵¹²⁵     “Avec le Fils de Dieu.” not because he conveys his substance to us, but because, by the power of his Spirit, he imparts to us his life and all the blessings which he has received from the Father.

That the world may believe. Some explain the word world to mean the elect, who, at that time, were still dispersed; but since the word world, throughout the whole of this chapter, denotes the reprobate, I am more inclined to adopt a different opinion. It happens that, immediately afterwards, he draws a distinction between all his people and the same world which he now mentions.

The verb, to believe, has been inaccurately used by the Evangelist for the verb, to know; that is, when unbelievers, convinced by their own experience, perceive the heavenly and Divine glory of Christ. The consequence is, that, believing, they do not believe, because this conviction does not penetrate into the inward feeling of the heart. And it is a just vengeance of God, that the splendor of Divine glory dazzles the eyes of the reprobate because they do not deserve to have a clear and pure view of it. He afterwards uses the verb, to know in the same sense.

22. And I have given to them the glory which thou gavest to me. Let it be observed here, that, while a pattern of perfect happiness was exhibited in Christ, he had nothing that belonged peculiarly to himself, but rather was rich, in order to enrich those who believed in him. Our happiness lies in having the image of God restored and formed anew in us, which was defaced by sin. Christ is not only the lively image of God, in so far as he is the eternal Word of God. but even on his human nature, which he has in common with us, the likeness of the glory of the Father has been engraved, so as to form his members to the resemblance of it. Paul also teaches us this, that

we all, with unveiled face, by beholding THE GLORY OF GOD, are changed into the same image,
(2 Corinthians 3:18.)

Hence it follows, that no one ought to be reckoned among the disciples of Christ, unless we perceive the glory of God impressed on him, as with a seal, by the likeness of Christ. To the same purpose are the words which immediately follow: