And they shall teach no more every man his neighbor, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them,
says the LORD: for I will forgive their iniquity, and I will remember their sin no more.
Read Chapter 31
Augustine of Hippo
AD 430
You do not say, “Let man be made,” but, “Let us make man.” Nor do you say, “after his kind,” but after “our image” and “likeness.” Because, being renewed in his mind and beholding and apprehending your truth, a person does not need another person as his director so that he may imitate his own kind. By your direction he proves what your good, acceptable and perfect will is. You teach him—now that he has been made capable—to perceive the Trinity of the Unity and the Unity of the Trinity. Therefore this being said in the plural, “Let us make man,” it is yet followed by the phrase in the singular, “and God made man.” This is said in the plural, “after our likeness,” followed by the phrase in the singular, “after the image of God.” Thus humankind is renewed in the knowledge of God, after the image of him who created them. Being made spiritual, he judges all things—all things that are to be judged—“yet he himself is judged by no mortal.” - "Confessions 13.22.32"
If we are asked why we do not worship God as the Hebrew ancestors of the Old Testament worshiped him, we reply that God has taught us differently by the New Testament fathers, and yet not in opposition to the Old Testament, but as that Testament itself predicted. For it is thus foretold by the prophet Jeremiah … that that covenant would not continue but that there would be a new one. And to the objection that we do not belong to the house of Israel or to the house of Judah, we answer according to the teaching of the apostle, who calls Christ the seed of Abraham and says to us, as belonging to Christ’s body, “Therefore you are Abraham’s seed.” - "Reply to Faustus the Manichaean 32.9"
The teachers of the Word come and go, and others follow in the succession of those who pass away. But the sacred Scripture remains for all time without ever being abolished, until the time when the Lord shall appear at the end of the world. Then we shall have no further need for the Scriptures or for those who interpret them, since there will be a long-awaited fulfillment of that promise of the Lord that says, “And they shall not teach their neighbor and brother saying, ‘Know the Lord,’ for they shall all know me, from the least of them to the greatest.” - "On the Tabernacle 1.7"
God raised Christ to the skies, transplanting mortality into immortality and translating earth to heaven—he, the husbandman of God, “pointing out the favorable signs and rousing the nations to good works, putting them in mind of their true sustenance,” having bestowed on us the truly great, divine and inalienable inheritance of the Father, deifying people by heavenly teaching, putting his laws into our minds and writing them on our hearts. What laws does he inscribe? “That all shall know God, from small to great,” and, “I will be merciful to them,” says God, “and will not remember their sins.” Let us receive the laws of life, let us comply with God’s corrections. Let us become acquainted with him, that he may be gracious. - "Exhortation to the Greeks 11"
Lord. Christ himself came to instruct mankind. The true God was better known than ever, even by the illiterate. Yet God requires us to have recourse to men, in order to know his truths, as St. Paul was sent to Hananias, and the eunuch to Philip. (Haydock)
The apostles were enlightened by the Holy Spirit, (John vi. 45.; St. Augustine, de Spir.; Calmet) who still guides the flock by his pastors. The private spirit is too fanatical and delusive. (Haydock)
The most ignorant shall easily become acquainted with the truths of salvation. External preaching is requisite, though of little use unless grace touch the mind and the heart. (Tirinus)
All will hear successively, (Haydock) or embrace the gospel at the same time, for several years before the last day. (Houbigant, pref. in Prop. 356) (Isaias xi. 9., and xlv. 23., and Sophonias iii. 9.) (Haydock)
In Jeremiah, we read concerning the future kingdom …, “They shall all know me, from the least to the greatest of them.” The context of this passage clearly shows that the prophet is describing the future kingdom. But how can there possibly be in it a least or greatest, if all are to be equal? The secret is disclosed in the Gospel: “Whoever shall do and teach, he shall be called great in the kingdom of heaven; but whoever shall teach and not do shall be least.” - "Against Jovinianus 2.27"
To show the rapidity of the change and the facility with which they would embrace Christ’s teaching, the prophet went on to say, “And they shall no more teach everyone his neighbor and everyone his brother, saying, ‘Know the Lord,’ for all will know me, from the least of them to the greatest of them.” On his coming, Christ would also pardon the transgressions of all people and no more remember their sins. What could be clearer than this? By these predictions the prophet revealed the calling of the Gentiles, the superiority of the new law over the old law, the ease of access, the grace possessed by those who have believed and the gift given in baptism. - "Demonstration Against the Pagans 10.9–10"
Let me beg you to consider then this simple and single-hearted person and take notice of him in the affairs of life, and you will see him a pattern of the utmost scrupulousness, such that if he would have shown it in spiritual matters he would not have been overlooked. The facts of the truth are clearer than the sun. And wherever a person may go, he might easily lay hold of his own salvation, if he wanted to, that is, to be obedient and not to look on this as a byproduct. For were these events confined to Palestine or to a little corner of the world? Didn’t you hear the prophet say, “All shall know me, from the least even to the greatest”? - "Homilies on Romans 26"
Consider how easy it is for people to obey. For Jeremiah said, “They shall no more teach every man his neighbor, and every man his brother, saying: ‘Know the Lord.’ For all men will know me from the least of them to the greatest.” And Isaiah showed how indestructible the Church would be. “For in the last days the mountain of the Lord will be conspicuous, and the house of the Lord will be on top of the mountains and will be exalted above the hills. And to this mountaintop will come many peoples and many nations.” - "Demonstration Against the Pagans 6.5"
Obviously, those who have heard the gospel and refused to believe are all the more inexcusable than if they had not listened to any preaching of the truth. But it is certain that in God’s foreknowledge they were not children of Abraham and were not reckoned among the number of them of whom it is said, “In your seed all the tribes of the earth shall be blessed.” He promised them the faith when he said, “And no one shall teach his neighbor and no one his brother, saying, ‘Know the Lord.’ For all shall know me, from the small among them even to the great.” He promised them pardon when he said, “I will forgive their iniquities, and I will remember their sins no more.” He promised them an obedient heart when he said, “I will give them another heart and another way, that they may fear me all days.” He promised them perseverance when he said, “I will give my fear in their heart, that they may not revolt from me, and I will visit them, that I may make them good.” Finally, to all without except...
The adulterous woman whom the law prescribed to be stoned was set free by him with truth and grace when the avengers of the law, frightened with the state of their own conscience, had left the trembling guilty woman to the judgment of him who had come “to seek and save what was lost.” For that reason he, bowing down—that is, stooping down to our human level and intent on the work of our reformation—“wrote with his finger on the ground,” in order to repeal the law of the commandments with the decrees of his grace and to reveal himself as the One who had said, “I will give my laws in their understanding, and I will write them in their hearts.” This indeed he does every day when he infuses his will into the hearts of those who are called and when with the pen of the Holy Spirit the Truth mercifully rewrites on the pages of their souls all that the devil enviously falsified. - "The Call of All Nations 1.8"