Verse 11. 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," Zech. xii, 7.
Verse 12. For I will justify them, which is the root of all true knowledge of God. This, therefore, is God's method. First, a sinner is pardoned: then he knows God, as gracious and merciful then God's laws are written on his heart: he is God's, and God is his.
Verse 13. In saying, A new covenant, he hath antiquated the first - Hath shown that it is disannulled, and out of date. Now that which is antiquated is ready to vanish away - As it did quickly after, when the temple was destroyed.