HistoricalChristian.Faith

John 6:71

71 He spake of Judas Iscariot the son of Simon: for he it was that should betray him, being one of the twelve.
Commentaries
John Chrysostomon John 6:70-71AD 407
"Have not I chosen you twelve, and one of you is a devil?"

For since Peter said, "We believe," Jesus excepteth Judas from the band. In the other place Peter made no mention of the disciples; but when Christ said, "Whom say ye that I am?" he replied, "Thou art the Christ, the Son of the living God"; but here, since he said, "We believe," Christ with reason admitteth not Judas into that band. And this He did afar off, and long before the time, to check the wickedness of the traitor, knowing that He should avail nothing, yet doing His own part.
John Chrysostomon John 6:70-71AD 407
And remark His wisdom. He made not the traitor manifest, yet allowed him not to be hidden; that on the one hand he might not lose all shame, and become more contentious; and on the other, that he might not, thinking to be unperceived, work his wicked deed without fear. Therefore by degrees He bringeth plainer reproofs against him. First, He numbered him too among the others, when He said, "There are some of you that believe not," (for that He counted the traitor the Evangelist hath declared, saying, "For He knew from the beginning who they were that believed not, and who should betray Him;") but when he yet remained such, He brought against him a more severe rebuke, "One of you is a devil," yet made the fear common to them all, wishing to conceal him. And here it is worth while to enquire, why the disciples at this time said nothing, but afterwards were afraid and doubted, looking one upon another, and asking, "Lord, is it I?", when Peter beckoned to John to find out the traitor, by enquiring of their Teacher which was he. What is the reason? Peter had not yet heard, "Get thee behind me, Satan," wherefore he had no fear at all; but when he had been rebuked, and though he spoke through strong affection, instead of being approved of, had even been called "Satan," he afterwards with reason feared when he heard, "One of you shall betray Me." Besides, He saith not even now, "One of you shall betray Me," but, "One of you is a devil"; wherefore they understood not what was spoken, but thought that He was only reflecting upon their wickedness.
John Chrysostomon John 6:70-71AD 407
But wherefore said He, "I have chosen you twelve, and one of you is a devil"? It was to show that His teaching was entirely free from flattery. For that they might not think that He would flatter them, because when all had left Him they alone remained, and confessed by Peter that He was the Christ, He leadeth them away from such a suspicion. And what He saith is of this kind. "Nothing abasheth Me from rebuking the bad; think not that because ye have remained I shall choose to flatter you, or that because ye have followed Me I shall not rebuke the wicked. For neither doth another circumstance abash Me, which is much more powerful than this to abash a teacher. For he that remaineth affordeth a proof of his affection, while one that hath been chosen by a teacher, being rejected, attacheth to him a character for folly among senseless persons. Still neither doth this cause Me to refrain from My reproofs." This at least even now the heathen frigidly and senselessly urge against Christ. For God is not wont to make men good by compulsion and force, neither is His election and choice compulsory on those who are called, but persuasive. And that thou mayest learn that the calling compelleth not, consider how many of these who have been called have come to perdition, so that it is clear that it lieth in our own will also to be saved, or to perish.
Bedeon John 6:70-71AD 735
Or we must say, that He elected the eleven for one purpose, the twelfth for another: the eleven to fill the place of Apostles, and persevere in it unto the end; the twelfth to the service of betraying Him, which was the means of saving the human race.
Theophylact of Ohridon John 6:71AD 1107
Consider also how fiercely the devil wages war. He was able to carry away one of the twelve apostles, who raised the dead, performed miracles, and heard the spiritual and life-giving teaching of the Lord. And where, then, is hope of salvation for us, when from our youth we have voluntarily enslaved ourselves to evil? Therefore the evangelist, as if in amazement, said: "being one of the twelve." "Although," he says, "he belonged to this holy company, yet by his evil will he proved unworthy of it." So easily is man inclined toward evil! Let the Manicheans not be deceived. We are not evil by nature. If that were the case, wickedness would constantly be at work in us. But Judas was not always evil; he was once even holy. Therefore evil both arises and grows from free will.
Thomas Aquinason John 6:71AD 1274
Our Lord corrected Peter's answer when he said, Did I not choose you Twelve? And one of you is a devil. First, we have the Lord's reply; secondly, the Evangelist's explanation of it (v 72).

Because Peter was great-hearted and included all in his answer, We have come to believe and to know that you are the Christ, the Son of God, it seemed that all of them would arrive at eternal life. And so our Lord excluded Judas from this community of believers. This trust was commendable in Peter, who did not suspect any evil in his companions; but we must also admire the wisdom of our Lord, who saw what was hidden. Thus he says, Did I not choose you Twelve? And one of you is a devil; not by nature, but by imitating the devil's malice: "Death came into the world by the envy of the devil; his disciples imitate him" (Wis 2:24); "After the morsel, Satan entered into him" (Jn 13:27), because Judas became like him in malice.

But if Christ chose Judas, who was later to become evil, it seems that our Lord made a mistake in choosing him. First, we might answer this as Chrysostom does, and say that this choice was not for predestination, but for some task, and in reference to a condition of present justice. Sometimes a person is chosen this way, not in relation to the future, but according to present realities; for being chosen in this way does not destroy one's free choice or the possibility of sinning: hence we read, "Let him who thinks that he stands, take heed so he will not fall" (1 Cor 10:12). And so our Lord did choose Judas, but not as evil at that time; and being so chosen did not take away his possibility of sinning. Secondly, we could answer with Augustine, who said that our Lord did choose Judas as evil. And although he knew that he was evil, because it is characteristic of a good person to use evil for good, God made good use of this evil in allowing himself to be betrayed in order to redeem us. Or, we could say that the choice of the Twelve does not refer here to the persons, but rather to the number; as if to say: I have chosen Twelve. For this number is fittingly set apart for those who would preach the faith of the Holy Trinity to the four corners of the world. And indeed, this number did not pass away, because Matthias was substituted for the traitor. Or, according to Ambrose, Jesus chose Judas as evil so that when we read that our Lord and Master was betrayed by his disciple, we might be consoled if sometimes our friends betray us.

We could ask here why the disciples did not say anything after our Lord said, one of you is a devil; for later on, when he says, "One of you will betray me" (Jn 13:21), they reply, "Is it I, Lord?" (Mt 26:22). I answer that the reason for this is that our Lord was speaking here in a general way when he said that one of them was a devil; for this could mean any kind of malice, and so they were not disturbed. But later on, when they heard of such a great crime, that their Master would be betrayed, they could not keep quiet. Or, we could say that when our Lord said this, each of them had confidence in his own virtue, and so none feared for himself; but after he said to Peter, "Follow after me, Satan" (Mt 16:23), they were afraid, and realized their own weakness. That is why they asked in that indecisive way, "Is it I, Lord?"