|Matthew Henry's Concise Commentary|
50:1-6 This psalm is a psalm of instruction. It tells of the coming of Christ and the day of judgment, in which God will call men to account; and the Holy Ghost is the Spirit of judgement. All the children of men are concerned to know the right way of worshipping the Lord, in spirit and in truth. In the great day, our God shall come, and make those hear his judgement who would not hearken to his law. Happy are those who come into the covenant of grace, by faith in the Redeemer's atoning sacrifice, and show the sincerity of their love by fruits of righteousness. When God rejects the services of those who rest in outside performances, he will graciously accept those who seek him aright. It is only by sacrifice, by Christ, the great Sacrifice, from whom the sacrifices of the law derived what value they had, that we can be accepted of God. True and righteous are his judgments; even sinners' own consciences will be forced to acknowledge the righteousness of God.
Verse 6. - And the heavens shall declare his righteousness. The angelic host, which comes to witness the judgment of Israel (ver. 4), shall proclaim it a righteous judgment. For God is Judge himself. And he will certainly "do right" (Genesis 18:25).
Gill's Exposition of the Entire Bible
And the heavens shall declare his righteousness,.... That is, either the heavens shall bear witness to his justice and equity in judging his people; or the angels, the ministers of the Gospel, shall declare his justifying righteousness, which is revealed in it, to the saints and covenant ones they shall be a means of gathering in: or rather the justice of Christ in the destruction of the Jews shall be attested and applauded by angels and men, just as the righteousness of God in the destruction of the antichristian powers is celebrated by the angel of the waters, Revelation 16:5;
for God is Judge himself. And not another, or by another; and therefore his judgments must be just and righteous, seeing he is just and true, loves righteousness, and is righteous in all his ways and works.
Selah; on this word; see Gill on Psalm 3:2.
Jamieson-Fausset-Brown Bible Commentary
6. The inhabitants of heaven, who well know God's character, attest His righteousness as a judge.
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