The Evangelist does not mention what Christ taught, for, as was said, the Evangelists do not report everything our Lord did and said, but those which excited the people or produced some controversy. And so here he mentions the excitement his teaching produced in the people: that is, that those who had said before, “He leads people astray,” were now amazed at his teaching.
1035 He mentions this amazement when he says, The Jews were amazed. And this is not surprising, for “Your testimony is wonderful” (Ps 118:129). For the words of Christ are the words of divine wisdom.
He adds the reason why they were amazed when he says, How did this man get his learning, since he never studied? For they knew that Jesus was the son of a poor woman and he was considered the son of a carpenter; as such, he would be working for a living and devoting his time, not to study, but to physical work, according to “I am poor, and have labored since my youth” (Ps 87:16). And so when they hear him teach and debate, they are amazed, and say, How did this man get his learning, since he never studied? Much the same is said in Matthew (13:54): “Where did he acquire this wisdom, and these great works? Isn’t he the son of the carpenter?”
1036 Having been told of the place and opportunity which Christ had to reveal the origin of his spiritual teaching, we now see the origin of this teaching. First, he shows them that God is the source of this spiritual teaching; secondly, he invites them to accept it (v 37). As to the first, he does two things. First, he shows the origin of this teaching; secondly, the origin of the one teaching it (v 25). He does two things about the first. First, he shows the origin of this teaching; secondly, he answers an objection (v 19). In regard to the first he does two things. First, he shows the origin of this teaching; secondly, he proves that it comes from God (v 17).
1037 He says, Jesus answered and said. As if to say: You are wondering where I gained my knowledge; but I say, My doctrine is not mine. If he had said: “The doctrine that I am presenting to you is not mine,” there would be no problem. But he says: My doctrine is not mine; and this seems to be a contradiction. However, this can be explained, for this statement can be understood in several ways. Our Lord’s doctrine can in some sense be called his own, and in some sense not his own. First, we can understand Christ as the Son of God. Then, since the doctrine of anyone is nothing else than his word, and the Son of God is the Word of God, it follows that the doctrine of the Father is the Son himself. But this same Word belongs to himself through an identity of substance. “What does belong to you, if not you yourself?” However, he does not belong to himself through his origin. As Augustine says: “If you do not belong to yourself (because you are from another), what does?” This seems to be the meaning, expressed in summary fashion, of: My doctrine is not mine. As if to say: I am not of myself. This refutes the Sabellian heresy, which dared to say that the Son is the Father.
Or, we could understand it as meaning that My doctrine, which I proclaim with created words, is not mine, but his who sent me, i.e., it is the Father’s; that is, my doctrine is not mine as from myself, but it is from the Father: because the Son has even his knowledge from the Father through an eternal generation. “All things have been given to me by my Father” (Mt 11:27).
Secondly, we can understand Christ as the Son of Man. Then he is saying: My doctrine, which I have in my created soul, and which my lips proclaim, is not mine, i.e, it is not mine as from myself, but from God: because every truth, by whomever spoken, is from the Holy Spirit.
Thus, as Augustine says in The Trinity (Bk 1), our Lord called this doctrine his own from one point of view, and not his own from another point of view. According to his form of God, it was his own; but according to his form of a servant, it was not his own. This is an example for us, that we should realize that all our knowledge is from God, and thank him for it: “What do you have which you have not been given? And if you have been given it, why do you glory as if you have not been given it?” (1 Cor 4:7).
1038 Then (v 17), he proves that his doctrine is from God. And he does this in two ways: first, from the judgment of those who correctly understand such matters; and secondly, from his own intention (v 18).
1039 With respect to the first, we should note that when there is a question whether someone is performing well in some art, this is decided by one who has experience in that art; just as the question whether someone is speaking French well should be decided by one who is well versed in the French language. With this in mind, our Lord is saying: The question whether my doctrine is from God must be decided by one who has experience in divine matters, for such a person can judge correctly about these things. “The sensual man does not perceive those things that pertain to the Spirit of God. The spiritual man judges all things” (1 Cor 2:14). Accordingly, he is saying: Because you are alienated from God, you do not know whether a doctrine is from God. If anyone wants to do his will, that is, the will of God, he can know whether this doctrine is from God, or whether I am speaking on my own (a meipso). Indeed, one who is speaking what is false is speaking on his own, because “When he lies, he speaks on his own,” as we read below (8:44).
Chrysostom explains this text in another way. The will of God is our peace, our love, and our humility; thus Matthew (5:9) says: “Happy are the peacemakers, because they will be called sons of God. But the love of controversy often distorts a person’s mind to such an extent that he thinks that what is really true is false. Thus, when we abandon the spirit of controversy, we possess more surely the certitude of truth. “Answer, I entreat you, without contention, and judge, speaking what is just” (Jb 6:29). So our Lord is saying: If anyone wishes to judge my doctrine correctly, let him do the will of God, i.e., abandon the anger, the envy and the hatred which he has for me without reason. Then, nothing will prevent him from knowing whether this doctrine is from God, or whether I am speaking on my own, i.e., whether I am speaking the words of God.
Augustine explains it this way. It is the will of God that we know his works, just as it is the will of a head of a household that his servants do his works. The work of God is that we believe in him whom he has sent: “This is the work of God, that you believe in him whom he sent” (above 6:29). Thus he says: If anyone wants to do his will, that is, God’s will, which is to believe in me, he will know whether this doctrine is from God: “If you do not believe, you will not understand,” as that other version of Isaiah (7:9) says.
1040 Then when he says, Whoever speaks on his own seeks his own glory, he proves the same thing from his intention. And he presents two intentions through which we can recognize the two sources of a doctrine. Some are said to speak on their own [ a se ], and others not on their own. Now whoever strives to speak the truth does not speak on his own. All our knowledge of the truth is from another: either from instruction, as from a teacher; or from revelation, as from God; or by a process of discovery, as from things themselves, for “the invisible things of God are clearly known by the things that have been made” (Rom 1:20). Consequently, in whatever way a person acquires his knowledge, he does not acquire it on his own. That person speaks on his own who takes what he says neither from things themselves, nor from any human teaching, but from his own heart: “They proclaim a vision taken out of their own hearts” (Jer 23:16); “Woe to those foolish prophets who prophesy out of their own hearts” (Ez 13:3). Accordingly, when a person devises a doctrine on his own he does it for the sake of human glory: for, as we see from Chrysostom, a person who wishes to present his own private doctrine does so for no other purpose than to acquire glory. And this is what our Lord says, proving that his doctrine is from God: Whoever speaks on his own, about a certain knowledge of the truth, which is really from another, seeks his own glory. It is for this reason, and because of pride, that various heresies and false opinions have arisen. And this is a characteristic of the antichrist “who opposes and is exalted above all that is called God, or is worshipped” (2 Thes 2:4).
But the one who seeks the glory of him who sent him, as I do—“I do not seek my own glory” (below 8:50)— is truthful, and there is no injustice in him. I am truthful because my doctrine contains the truth; there is no injustice in me because I do not appropriate the glory of another. As Augustine says: “He gave us a magnificent example of humility when, in the form of a man, he sought the glory of the Father, and not his own. O man, you should do the same! When you do something good, you seek your glory; when you do something evil, you insult God.” It is obvious that he was not looking for his own glory, because if he had not been an enemy of the chief priests, he would not have been persecuted by them. So Christ, and everyone who is looking for the glory of God, has knowledge in his intellect, “Master, we know that you are truthful” (Mt 22:16): thus he says, he is truthful. And he has the correct intention in his will: thus he says, and there is no injustice in him. For a person is unjust when he takes for himself what belongs to another; but glory is proper to God alone; therefore, he who seeks glory for himself is unjust.
1041 Then (v 19), he answers an objection. For someone could tell Christ that his doctrine was not from God because he broke the sabbath, according to, “This man is not from God, for he does not keep the sabbath” (below 9:16). This is what he intends to answer; and he does three things. First, he clears himself, by arguing from the actions of those who are accusing him; secondly, we see their vicious reply (v 20); and thirdly, he vindicates himself with a reasonable explanation (v 21).
1042 He says: Even granting, as you say, that my doctrine is not from God because I do not keep the law, breaking the sabbath, nevertheless, you do not have any reason to accuse me since you do the same thing. Thus he says: Did not Moses give you the law? i.e., did he not give it to your people? And yet none of you obey the law. “You received the law through the angels, and have not kept it” (Acts 7:53). This is why Peter says: “A yoke, which neither our fathers nor we were able to bear” (Acts 15:10). Therefore, if you do not keep the law, why do you want to kill me for not keeping it? You are not doing this because of the law, but out of hatred. If you were acting out of devotion for the law, you would keep it yourselves. “Let us lie in wait for the just man, because he is unfavorable to us, and against our works, and he reproaches us for breaking the law” (Wis 2:12); and a little further on we read: “ Let us condemn him to a most shameful death” (Wis 2:20).
Or, it could be explained this way: You do not keep the law that Moses gave you; and this is obvious from the fact that you want to kill me, which is against the law: “You shall not kill” (Ex 20:13). Another explanation, following Augustine, is: You do not keep the law because I myself am included in the law: “If you believed Moses, you would perhaps believe me as well, for it was about me that he wrote” (above 5:46). But you want to kill me.
1043 Then we see the vicious reply of the crowd, when he says, The crowd replied and said: You have a demon within you! As Augustine says, their reply indicates disorder and confusion, rather than any order: for they are saying that the one who casts out devils has one himself (Mt c 12).
1044 Then when he says, I performed one work, and you are all amazed, our Lord, at peace in his own truth, answers them, and justifies himself with a reasonable explanation. First, he recalls the incident that is troubling them; secondly, he shows that this should not bother them (v 22); and thirdly, he shows the way to a judgment that is just (v 24).
1045 Jesus answered them: I performed one work, and you are all amazed. He does not trade one insult for another, nor rebuff it, because “When he was derided, he did not deride in return” (1 Pt 2:23). He rather recalls for them his cure of the paralytic, which was the cause of their amazement. But their amazement was not one of devotion, as in “Your heart will be amazed and expanded” (Is 60:5), but a kind of agitation and disturbance, as in “Those who see it will be afflicted with terrible fear, and will be amazed” (Wis 5:2). So, if you are amazed over one of my works, i.e., if you are disturbed and troubled, what would you do if you saw all of my works? For, as Augustine says, his works were those which they saw in the world: even all the sick are healed by him. “He sent his word, and healed them” (Ps 106:20); “It was neither a herb nor a poultice that healed them, but your word, O Lord, which heals all” (Wis 16:12). Thus, the reason why you are disturbed is that you have seen only one of my works, and not all of them.
1046 Then (v 22), he shows that there is no reason why they should be disturbed. First, he recalls the command given to them by Moses; secondly, he states their customary behavior; and thirdly, he presents an argument based on the first two.
1047 The command of Moses was about circumcision; so he says: Therefore, i.e., to signify my works, Moses gave you circumcision. For circumcision was given as a sign, as we read, “it will be a sign of the covenant between me and you” (Gn 17:11). For it signified Christ. This is the reason why it was always done on the genital organ, because Christ was to descend, in his human nature, from Abraham; and Christ is the one who spiritually circumcises us, i.e., both in mind and body. Or, it was done to the genital organ because it was given in opposition to original sin.
We do not find it explicitly stated that Moses gave circumcision, unless in Exodus (12:44): “Every slave who is bought shall be circumcised.” And although Moses did tell them to circumcise, he was not the one who established this practice, because he was not the first one to receive the command to circumcise; this was Abraham, as we see from Genesis (17:10).
1048 Now it was the custom among the Jews to circumcise on the sabbath. And this is what he says: you circumcise on the sabbath day. They did this because Abraham was told that a boy should be circumcised on the eighth day: “He circumcised him on the eighth day, as God had commanded him” (Gn 21:4). On the other hand, they were told by Moses not to do any work on the sabbath. But it sometimes happened that the eighth day was a sabbath. And so, in circumcising a boy on that day, they were breaking a command of Moses for a command of the patriarchs.
1049 Our Lord is arguing from those facts when he says: If a man receives circumcision on the sabbath day, so that the law of Moses may not be broken, why are you indignant with me because I healed a whole man on the sabbath?