In Jehovah shall be justified. He now makes a brief reply to an objection which might be urged, that it appeared absurd to say, that the Lord called the Gentiles, who had always been alienated from him. "Is it in vain that the Lord hath chosen the seed of Abraham? Is his promise void, which he so frequently repeated?" (Genesis 15:5, and 17:7.) In order to remove this doubt, he declares that the Lord will nevertheless stand by his promises; that, though he choose the Gentiles, yet the covenant which he made with the fathers shall not fall to the ground, because the elect people shall enjoy the privileges of their rank. Nor does he in this passage, as in many others, speak of the rejection of that nation; but the Prophet simply shews that the grace of God, which shall be diffused throughout the whole world, shall flow from that fountain. As to the greater number having been rejected by God, still this did not set aside God's covenant; because the remnant of adoption were always the true and lawful Israel; and although they were few in number, yet they were the first-born in the Church. Besides, all those among the Gentiles who had been ingrafted into that body began also, as we have formerly seen, to be accounted children of Abraham. "One shall say, I belong to Jacob; another shall subscribe with his band, I am a descendant of Israel." (Isaiah 44 5.) And on this ground we are now reckoned the genuine Israel of God, though we are not the descendants of Israel. The Prophet therefore added this, both that the Jews might not think that the Lord's covenant had failed, and that they might not boast of their birth and despise the Gentiles. All the seed of Israel. He extends this seed farther, that they may not suppose that it ought to be limited to the family of Abraham; for the Lord gathers his people without distinction from among Jews and Gentiles, and here he speaks universally of the whole human race. Shall be justified and shall glory. It ought to be observed that the Prophet says that we "are justified and glory in the Lord," for in none else ought we to seek "righteousness" or "glory." He has joined to it "glory," which depends on "righteousness," and is added to it. Hence also Paul says, "Where is thy glorying? It is excluded. By what law? Of works? No, but by the law of faith." (Romans 3:27.) And, again, "If Abraham was justified by works, he hath glory, but not before God." (Romans 4:2.) It follows, therefore, that they alone deservedly glory who seek their righteousness in God, and acknowledge that in themselves they have no ground for glorying.

In the Lord - It shall be only in Yahweh that they shall find justification, and this must mean, that it is by his mercy and grace. The entire passage here, I suppose, has reference to the times of the Redeemer (see the notes at Isaiah 45:21-24). If so, it means that justification can be obtained only by the mercy of God through a Redeemer. The great truth is, therefore, here brought into view, which constitutes the sum of the New Testament, that people are not justified by their own works, but by the mercy and grace of God.
All the seed of Israel - All the spiritual seed or descendants of Jacob. It cannot mean that every individual shall be justified and saved, for the Bible abundantly teaches the contrary (see Matthew 8:11-12; Romans. 11) But it must mean that all who have a character resembling that of Israel, or Jacob; all who are the true children and friends of God (see Romans 2:28-29; Romans 4:9-13).
Be justified - Be regarded and treated as righteous. Their sins shall be pardoned, and they shall be acknowledged and treated as the children of God (see the notes at Romans 3:24-25). To justify, here, is not to pronounce them innocent, or to regard them as deserving of his favor; but it is to receive them into favor, and to resolve to treat them as if they had not sinned; that is, to treat them as if they were righteous. All this is by the mere mercy and grace of God, and is through the merits of thc Redeemer, who died in their place.
And shall glory - Or rather, shall praise and celebrate his goodness. The word used here (חלל châlal) means, in the Piel, "to sing, to chant, to celebrate the praises of anyone" 1-Chronicles 16:36; Psalm 44:9; Psalm 117:1; Psalm 145:2, and is the word of which the word "hallelujah" is in part composed. Here it means, that the effect of their being justified by Yahweh would be, that they would be filled with joy, and would celebrate the goodness of God. This effect of being justified, is more fully stated in Romans 5:1-5. It is a result which always follows; and a disposition to praise and magnify the name of God in view of his boundless mercy in providing a way by which sinners may be justified, is one of the first promptings of a renewed heart, and one of the evidences that a soul is born again.

In the Lord shall all the seed of Israel be justified,.... All the spiritual Israel of God, whether Jews or Gentiles; all the spiritual seed and offspring of Christ, to whom he stands in the relation of the, everlasting Father and federal Head; these being given to him, and being in him, are justified in him from all things; and these, all and everyone, shall be brought to see their need of his righteousness, and look to him for it, and receive it from him by faith; and be manifestatively justified in their own consciences, as they will be openly at the bar of God, before angels and men, hereafter. The Targum is,
""in" or by the Word of the Lord all the seed of Israel shall be justified:''
and shall glory; in Christ, as the Lord their righteousness; not in themselves, in their own righteousness, holiness, wisdom, and strength, but in this, that Christ is made to them wisdom, righteousness, sanctification, and redemption, 1-Corinthians 1:30.

all . . . Israel--the spiritual Israel (Romans 2:29) and the literal Israel, that is, the final remnant which shall all be saved (Isaiah 45:17; Romans 11:26).
justified--treated as if they were just, through Christ's righteousness and death (Jeremiah 23:5).
glory--literally, "sing" in His praise (Jeremiah 9:24; 1-Corinthians 1:31).

All - All Israelites indeed, whether Jews or Gentiles.