Hebrews 8:11

“And they shall not teach every man his neighbour, etc..] The Alexandrian copy reads, “citizen”; that is, fellow citizen; and so the Syriac and Arabic versions: “and every man his brother, saying, know the Lord”: this is not to be understood, so as to set aside the external and public ministry of the word, which is a standing ordinance of God under the Gospel dispensation; or even the, private instructions of saints one to another, in Christian conversation, whereby they may build up one another in their most holy faith; but the sense is, that men should not only teach, but the Spirit of God should teach with them, and by them; and it stands opposed to particular and pretended revelations,…”

“Second of the "better promises" (Heb 8:6). they shall not--"they shall not have to teach" [ALFORD]. his neighbour--So Vulgate reads; but the oldest manuscripts have "his (fellow) citizen." brother--a closer and more endearing relation than fellow citizen. from the least to the greatest--Greek, "from the little one to the great one." Zac 12:8, "He that is feeble among them shall be as David." Under the old covenant, the priest's lips were to keep knowledge, and at his mouth the people were to seek the law: under the new covenant, the Holy Spirit teaches every believer. Not that the mutual teaching of brethren is excluded while the covenant is being promulgated; but when once the Holy Spirit…”

“And they shall not teach every man his neighbor ... - That is, no one shall be under a necessity of imparting instruction to another, or of exhorting him to become acquainted with the Lord. This is designed to set forth another of the advantages which would attend the new dispensation. In the previous verse it had been said that one advantage of that economy would be, that the Law would be written on the heart, and that they who were thus blessed would be regarded as the people of God. Another advantage over the “old” arrangement or covenant is here stated. It is, that the knowledge of the Lord and of the true religion would be deeply engraved on the minds of all, and that there would be no…”

“And they who are under this covenant (though in other respects they will have need to teach each other to their lives' end, yet) shall not need to teach every one his brother, saying, Know the Lord; for they shall all know me - All real Christians. From the least to the greatest - In this order the saving knowledge of God ever did and ever will proceed; not first to the greatest, and then to the least. But "the Lord shall save the tents," the poorest, "of Judah first, that the glory of the house of David," the royal seed, "and the glory of the inhabitants of Jerusalem," the nobles and the rich citizens, "do not magnify themselves," Zac 12:7. Hebrews 8:12”

“8:11 All those in the new covenant know the Lord; intimate personal relationship with the Lord is in the very nature of the new covenant.”

“they shall: Isa 2:3, Isa 54:13; Jer 31:34; Joh 6:45; Jo1 2:27 Know the: Kg2 17:27, Kg2 17:28; Ch1 28:9; Ch2 30:22; Ezr 7:25 for all: Isa 54:13; Jer 24:7; Eze 34:30; Hab 2:14; Jo1 5:20 from: Jer 6:13, Jer 42:1, Jer 42:8, Jer 44:12; Act 8:10 Hebrews 8:12”