Isaiah 65:9

And I will bring forth a seed out of Jacob,.... Jerom says most understand this of Christ; and who indeed is called the seed of the woman, the seed of Abraham, the seed of David, and sprang from Jacob or Israel, and came out of the tribe of Judah; and may be fitly signified by the cluster, in which new wine and a blessing were, which "seed" here is explanative of; since the clusters of all divine perfections, of all the blessings of grace, and of all the promises of it, are in him: and since he is that seed in whom all the nations of the earth are blessed, and with whom the covenant of grace was made, Galatians 3:16, but others, the above ancient writer observes, understood it of the apostles; and it seems to design the first that believed in Christ, who were of the Jewish nation, the apostles and others; for though the generality of that people rejected the Messiah, there were a few that believed on him, a remnant according to the election of grace, whom the apostle calls a seed, the Lord left among them, and reserved for himself, Romans 9:29

Romans 11:4 such who received the seed of the word into their hearts, and were born again of incorruptible seed, and which remained in them; these were distinguished by the grace of God from the rest of the people, and were called and brought forth from among them:

and out of Judah an inheritor of my mountains; this also is true of Christ, who not only came out of the tribe of Judah, as was foretold he should, and as it is manifest he did; hence he is called the Lion of that tribe; but he is also an heir or inheritor of the mountains of God; he is indeed heir of all things, Hebrews 1:2, as he is the Son of God, he is heir by nature of all the Father has; and, as Mediator, he is heir by appointment of all persons and things; he has all persons for his inheritance, and in his possession, and at his dispose, angels and men; and he is possessed of all things, of all blessings of goodness, natural and temporal, spiritual and eternal; and his chosen people are joint heirs with him, and who may be here meant; such as are the seed of the Lord are sons and heirs; they are heirs of God, being the sons of God; heirs of his covenant, the blessings and promises of it, which is as a mountain, firm and immovable; they are heirs of the grace of life, and of the kingdom; heirs of righteousness, life, and salvation; of eternal glory, the heavenly Canaan, signified by the mountains of the Lord; alluding to the mountains on which the temple and Jerusalem stood, or to those about Jerusalem, or in the land of Judea in general:

and mine elect shall inherit it; Christ is God's first and chief elect, and his people are chosen in him through grace to glory; and these are the seed and heirs that do inherit grace, and shall inherit glory; for this is to be understood not literally of the land of Judea, which was not long inherited by any after the times of Christ and his apostles, to which this prophecy respects; unless it can be thought to belong to the latter day, when the Jews will be converted, and return to it; but figuratively of Mount Zion, or of the heavenly country:

and my servants shall dwell there; my righteous servants, as the Targum; these are the same with the seed, the inheritor, and the elect, who become the servants of God, through the power of his grace, and serve him cheerfully, willingly, and without selfish ends and views; to this they are chosen, and for this purpose become a spiritual seed; nor is this inconsistent with their being heirs; and who shall receive the inheritance in a way of grace, and possess it for ever; they shall dwell in the church below, and enjoy all the privileges of it, and shall dwell upon their estate for ever; for their inheritance is an eternal one, reserved in the heavens.