John Gill's Exposition of the Whole Bible
Isaiah 60:21
Thy people also shall be all righteous,.... That is, the church's people, or the members of the church; otherwise the Lord's people, who are truly so, always were, and ever will be, all righteous; but so have not always been the members of the churches; when Israel was the church of God, they were not all righteous; there was only a remnant among them, according to the election of grace, that were so; nor in the first Christian churches were they all such, there was a Judas among Christ's disciples; Ananias and Sapphira in the church at Jerusalem; and many in the church of Corinth, very disorderly and irregular; and so in all others; and in all ages since there are foolish virgins among the wise, tares among the wheat, and chaff among the corn on the floor; yea, even in the spiritual reign of Christ they will not be all truly gracious; some that will have only a form of godliness, and who, at the close of it, will be the greater number, and will form the lukewarm Laodicean state; but in the personal reign of Christ all the members of the church will be righteous, through the righteousness of Christ imputed to them: it will be a congregation of righteous persons, and not one sinner shall stand in it; yea, they shall be inherently righteous, perfectly holy, and free from sin; none shall enter into this state that defiles; every pot and vessel in Jerusalem shall be holiness to the Lord, Psalms 1:5. The Jews o have a saying, that the son of David comes not but in an age in which men will be all righteous, or all wicked; in an age in which they will be all righteous, according to Isaiah 60:21, but this designs not his first, but his second coming:
they shall inherit the land for ever; not the land of Canaan only; though perhaps that may be the spot on which Christ will descend, and where he will reside; where he was treated with contempt and crucified, here he will reign, and reign gloriously; and the rather, since, when he comes with all his saints, his feet will stand upon the mount of Olives, Zechariah 14:4 but the new earth is meant, which John saw, and Peter says the saints expect, according to promise, in which righteousness men perfectly righteous shall dwell, and none but they, Revelation 21:1 as also it may include a better country, the land afar off, the heavenly glory, which will be the inheritance of the saints to all eternity:
the branch of my planting; in Christ by election grace; in the likeness of his death and resurrection by redemption grace; and as branches in him, the Vine, by effectual calling grace; and in his church, through the ministry of the word; all which will appear true and real; and that they are plants of the Lord's planting, by their being in this church state, even in the paradise of God, near to the tree of life, the fruit of which they will always partake of:
the work of my hands; the workmanship of God, curiously wrought by him; the effect of his mighty power; wholly his own work and not another's; and entirely owing to his great love, abundant mercy, and rich grace; as will be evident in this state; this being the day of the Lord unto which it is performed, and become perfect; and there will be no more doubts of that matter:
that I may be glorified; as he will be then in all them that believe; and by these characters which they bear, and are to be ascribed to his power, grace, and righteousness; Christ, and he alone, will be exalted; he will reign before his ancients gloriously, until he delivers up the kingdom; and then God, Father, Son, and Spirit, will be all in all.
o T. Bab. Sanhedrin, fol. 98. 1.