While I was with them in the world, I kept them in your name: those that you gave me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled.
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Cyril of Alexandria
AD 444
Our Saviour's speech soon proceeds to illustrate His meaning more plainly; and while at the first dark hints were given, it is now proclaimed and revealed like a storm breaking into sunshine. For the disciples thought that our Saviour's abandonment of them,----I mean in the flesh,----would inflict on them great loss; for nothing could prevent His being with them as God. But they expected that no one could then save them after Christ's Ascension into heaven, but that they would fall a prey to those who wished to injure them, and that there would be nothing to restrain the hand of their powerful adversaries, but rather that any one so disposed might work his will on them without hindrance, and involve them in any peril. But wise as they were and fathers in the faith, and bearers of light to the world, we need not shrink from saying that they ought not merely to have regarded the Incarnate Presence of our Saviour Christ, but to have known that even though He were to deprive them of converse with Him in the flesh, and they saw Him not with the eye of the body, yet that it was their duty at any rate to think of Him as present with them for evermore in the power of His Godhead. For will God ever lose the attributes of His Person? Or what power can resist an Omnipotent Nature, or is able perforce to hinder it in the performance of its functions? And it is the power and actuality of God's Being to be present everywhere, and unspeakably to fill the heavens and also the earth, and to contain all things, but to be contained of none. For God is not bounded by place, nor separated by distance within any sphere, however great; for such like things cannot avail to affect that Nature which has nothing to do with the dimensions of space. Then, since Christ was at the same time God and Man, the disciples ought to have been aware that, though He were absent in the body, yet He would not wholly forsake them, but would be ever with them by reason of God's unspeakable might. And for this reason also our Saviour Himself said, in the foregoing passage: Holy Father, keep them in Thy Name which Thou hast given Me; and here again: While I was with them, I kept them in Thy Name which Thou hast given Me; almost pointing out this fact to His disciples, that the ability to save them suited rather the working of His power as God than His Presence in the flesh: for this very flesh was not sanctified of itself; but when, by His Incarnation, the Word was made one with it, it was in some sort transformed into His inherent power, and is now become the channel of salvation and sanctification to those who partake thereof. We must not then attribute the whole of the Divine activities of Christ to the flesh by itself, but we shall be rather right if we ascribe them to the Divine power of the Word. For does not "keeping the disciples in the Name of the Father" mean this, and nothing else? For they are kept by the glory of God. He removes, then, from His disciples' minds, the fear which they felt because they thought themselves forsaken; often following the same course of thought, He assures them that they will be in perfect safety, not through living with their Master in the body, but rather because He is by Nature God. Evidently the universal dominion and might which are His have no end; for He can suffer no change or alteration from that state in which He dwells eternally, but will keep them safe with ease for evermore, and rescue them from every peril that may assail them. Consider also the forethought wrapped up in the saying, to our profit and edification. For when He asks that they----I mean His holy disciples ----should be kept by God the Father, He declares that He Himself had done this, showing Himself like in power and works to His Father, or rather, His inherent might. For surely He Who is seen to have the same power as God, He Who is acknowledged the true God, must be thought to be wholly inherent in Him, and to possess equality of power and identity of Nature with Him. And how can He Who kept them as God in the Name of God, and as a God crowned them with the glory that proceeded from righteous actions befitting the title, be foreign to God, or of different nature? Is He not in very deed shown to be that which He is, namely, God? For nothing that exists can do those works which are peculiar to God, without being in its own nature that which we imagine God to be. He still preserves in the passage the twofold conception of His character owing to His Incarnation. For He takes away, as it were, from His Nature, as a created Being, the power of saving and preserving all to whom this is due for their piety towards God. and ascribes it to the Name of the Father, attributing to the Divine Nature alone the things which are of God. And for this reason, again, though He says that He kept the disciples, He did not give the honour of taking up the work to His Humanity, but rather says that it was fulfilled in the Name of God; excluding Himself, in a manner, from its accomplishment, so far as He is flesh and is so conceived of, but not excluding Himself from the power of keeping them, and of accomplishing the works of a God, insomuch as He is God, and from God, the all-working power of the Father----a Divine force which even when at rest displays by its very attributes the Nature from which it ineffably proceeded. And if here too, again, He says that the Name of God has been given unto Him, although He is in fact God by Nature, as the Only-begotten Who proceeded from Him, He is not thereby in truth degraded, nor would He thereby exclude Himself from the honour and glory which is His due. Far from it. For to receive is appropriate to His Humanity, and can be fittingly ascribed thereto; for, of itself, humanity possesses nothing.
He says that He so kept His disciples, and had such care for them, that none of them was lost save one, whom He called the son of perdition; as though he were doomed to destruction of his own choice, or rather his own wickedness and impiety. For it is inconceivable that the traitor disciple was by a Divine and irresistible decree entangled, as it were, in the snare of the fowler, and brought within the devil's noose; for then would he surely have been guiltless when he succumbed to the verdict of heaven. For who shall oppose the decree of God? And now he is condemned and accursed, and it would have been better for him if he had never been born. And why? Surely the wretched man met his doom as a consequence of his own volitions, and is not convicted by destiny. He that was so enamoured of destruction may well be called a son of perdition, inasmuch as he merited ruin and corruption, and ever awaits the day of perdition as fraught with anguish and lamentation.
And as Christ added to the words He used concerning him, that the Scripture might be fulfilled, we have given an explanation which may be useful to readers of this passage. For it was not because of any prophecy in Scripture that the traitor was lost, and became so vile as to barter for a few coins the precious Blood of Christ, but rather, as through his own innate wickedness he betrayed his Lord, and was infallibly destined to destruction on that account, the Scripture, which cannot lie, foretold that so it would be. For the Scripture is the Word of God, Who knows all things, and carries in His own consciousness the character and life of each one of us, and his conversation from the beginning to the end. Moreover, the Psalmist, attributing to Him knowledge of all things, of the past as well as of the future, thus addresses Him: Thou understandest all my thoughts afar off; Thou compassest my path and my lying down, and art acquainted with all my ways. The Divine Word, then, Which had complete foreknowledge, and saw the future as though it were already present, besides all the rest which It told us about Christ, revealed unto us that he that was ranked a disciple would also die the death of a traitor. Still, the foreknowledge and foretelling of the future indicated not the pleasure and commandment of God; nor yet was the prophecy directed to compel the actual fulfilment of the evil that was foreshadowed and the conspiracy against the Saviour, but rather to avert it. For when Judas had this knowledge he might, at any rate, if he had so chosen, have shunned and avoided the result, as he was free to determine his inclinations in any direction.
Put perhaps you will say, "How, then, can Christ be said to have kept His disciples, if merely in pursuance of the inclinations and volitions of their own wills the rest escaped the devil's net while Judas alone was taken, ill-fated beyond the others? How, then, can the safekeeping here spoken of be said to have been of profit?
Nay, my good friend, we answer, soberness is indeed a good thing, and the keeping guard over our minds profiteth much, together with an earnest endeavour towards the doing of good works and stablishing ourselves in virtue, for so shall we work out our own salvation; but this alone will not avail to save the soul of man. For it stands in urgent need of assistance and grace from above, to make what is difficult of achievement easy to it, and to render the steep and thorny path of righteousness smooth. And to prove to you that we are not able to do anything at all of ourselves without the aid of Divine grace, hearken to the voice of the Psalmist: If the Lord build not the house, their labour is in vain that build it: and if the Lord keep not the city, the watchman waketh but in vain.
I say, then, that it is our bounden duty to foster and practise a home-bred self-denial and a religious frame of mind; but in so doing also to ask help of God, and, receiving the aid that comes from above as a panoply proof against every assault, to acquit ourselves like men. When God has once for all vouchsafed to grant our prayer, and it is therefore in our power to subdue the might of our adversaries, and conquer the power of the devil, if we do not choose to follow him when he allures us to pleasure or any other kind of sin; then, I say, if we let our wills comply with him, and, yielding to our wicked inclinations, are entangled in his noose, how can we any more with justice accuse any one else, or fail to attribute our doom to our own folly? For is not this what Solomon said long ago: The foolishness of man perverteth his way, and his heart fretteth against the Lord? And this is unquestionably the case. If, however, the traitor was unable to enjoy the succour of the Saviour as much as the other disciples, let any man only prove this, and we submit; but if, while he was, in common with the rest, encompassed by the Divine grace, of his own will he relapsed into the abyss of perdition, how can Christ be said not to have kept him, when He vouchsafed him the riches of His mercy, and increased, so far as it was possible in any man's case, his chance of safety, if he had not chosen his doom of his own will? His grace, moreover, was conspicuous in the rest, continually keeping in safety those who made their own free-will, as it were, co-operate therewith. For this is the manner in which the salvation of each one of us is achieved.