1 Corinthians 2:14-16
12 Wherefore also, subjoining a plain demonstration of what had been affirmed, he says, “For who has known the mind of the Lord, that he may instruct Him? But we have the mind of Christ.” That is to say, the things which are in the mind of Christ, these we know, even the very things which He wills and has revealed. For since he had said, “the Spirit had revealed them;” lest any one should set aside the Son, he subjoins that Christ also showed us these things. Not meaning this, that all the things which He knows, we know; but that all the things which we know are not human so as to be open to suspicion, but of His mind and spiritual.
For the mind which we have about these things we have of Christ; that is, the knowledge which we have concerning the things of the faith is spiritual; so that with reason we are “judged of no man.” For it is not possible that a natural man should know divine things. Wherefore also he said, “For who has known the mind of the Lord?” implying that our own mind which we have about these things, is His mind. And this, “that he may instruct Him,” he has not added without reason, but with reference to what he had just now said, “the spiritual man no one discerns.” For if no man is able to know the mind of God, much less can he teach and correct it. For this is the meaning of, “that he may instruct Him.”
Do you see how from every quarter he repels the wisdom which is without, and shows that the spiritual man knows more things and greater? For seeing that those reasons, “That no flesh should glory;” and, “For this cause has He chosen the foolish things, that He might confound the wise men;” and, “Lest the Cross of Christ should be made void:” seemed not to the unbelievers greatly worthy of credit, nor yet attractive, or necessary, or useful, he finishes by laying down the principal reason; because in this way we most easily see from Whom we may have the means of learning even high things, and things secret, and things which are above us. For reason was absolutely made of none effect by our inability to apprehend through Gentile wisdom the things above us.
You may observe, too, that it was more advantageous to learn in this way from the Spirit. For that is the easiest and clearest of all teaching.
“But we have the mind of Christ.” That is, spiritual, divine, that which has nothing human. For it is not of Plato, nor of Pythagoras, but it is Christ Himself, putting His own things into our mind.
This then, if naught else, let us revere, O beloved, and let our life shine forth as most excellent; since He also Himself makes this a sure proof of great friendship, viz. the revealing His secrets unto us: where He says, “Henceforth I call you not servants, for all you are My friends; for all things which I have heard from My Father I have told unto you:” that is, I have had confidence towards you. Now if this by itself is a proof of friendship, namely, to have confidence: when it appears that He has not only confided to us the mysteries conveyed by words, (τὰ διὰ ῥημάτων μυστηρία) but also imparted to us the same conveyed by works, (διὰ τῶν ἔργων, i.e. sacramental actions) consider how vast the love of which this is the fruit. This, if nothing else, let us revere; even though we will not make any such great account of hell, yet let it be more fearful than hell to be thankless and ungrateful to such a friend and benefactor. And not as hired servants, but as sons and freemen, let us do all things for the love of our Father; and let us at last cease from adhering to the world that we may put the Greeks also to shame. For even now desiring to put out my strength against them, I shrink from so doing, lest haply, surpass them as we may by our arguments and the truth of what we teach, we bring upon ourselves much derision from the comparison of our way of life; seeing that they indeed, cleaving unto error and having no such conviction, abide by philosophy, but we do just the contrary. However, I will say it. For it may be, it may be that in practising how to contend against them, we shall long as rivals to become better than they in our mode of life also.
14. I was saying not long ago, that it would not have entered the Apostles' thoughts to preach what they did preach, had they not enjoyed Divine Grace; and that so far from succeeding, they would not even have devised such a thing. Well then, let us also today prosecute the same subject in our discourse; and let us show that it was a thing impossible so much as to be chosen or thought of by them, if they had not had Christ among them: not because they were arrayed, the weak against the strong, not because few against many, not because poor against rich, not because unlearned against wise, but because the strength of their prejudice, too, was great. For you know that nothing is so strong with men as the tyranny of ancient custom. So that although they had not been twelve only, and not so contemptible, and such as they really were, but another world as large as this, and with an equivalent number arrayed on their side, or even much greater; even in this case the result would have been hard to achieve. For the other party had custom on their side, but to these their novelty was an obstacle. For nothing so much disturbs the mind, though it be done for some beneficial purpose, as to innovate and introduce strange things, and most of all when this is done in matters relating to divine worship and the glory of God. And how great force there is in this circumstance I will now make plain; first having made the following statement that there was added also another difficulty with regard to the Jews. For in the case of the Greeks, they destroyed both their gods and their doctrines altogether; but not so did they dispute with the Jews, but many of their doctrines they abolished, while the God who had enacted the same they bade them worship. And affirming that men should honor the legislator, they said, “obey not in all respects the law which is of Him;” for instance, in the keeping the Sabbath, or observing circumcision, or offering sacrifices, or doing any other like thing. So that not only was custom an impediment, but also the fact, that when they bade men worship God, they bade them break many of His laws.
15. But in the case of the Greeks great was the tyranny of custom. For if it had been a custom of ten years only, I say not of such a length of time, and if it had preoccupied but a few men, I say not the whole world, when these persons made their approaches; even in this case the revolution would have been hard to effect. But now sophists, and orators, and fathers, and grandfathers, and many more ancient than all these, had been preoccupied by the error: the very earth and sea, and mountains and groves, and all nations of Barbarians, and all tribes of the Greeks, and wise men and ignorant, rulers and subjects, women and men, young and old, masters and slaves, artificers and husbandmen, dwellers in cities and in the country; all of them. And those who were instructed would naturally say, “What in the world is this? Have all that dwell in the world been deceived? Both sophists and orators, philosophers and historians, the present generation and they who were before this, Pythagoreans, Platonists, generals, consuls, kings, they who in all cities from the beginning were citizens and colonists, both Barbarians and Greeks? And are the twelve fishermen and tent-makers and publicans wiser than all these? Why, who could endure such a statement?” However, they spoke not so, nor had it in their mind, but did endure them, and owned that they were wiser than all. Wherefore they overcame even all. And custom was no impediment to this, though accounted invincible when she has acquired her full swing by course of time.
Source: Homilies on First Corinthians (New Advent)