Declare his glory among the heathen Additional terms are adduced to commend the salvation spoken of. It is called his glory and his wonders; which is equivalent to saying that it was glorious and admirable. By such titles the Psalmist would distinguish it from any deliverances which had formerly been granted, as indeed there can be but one opinion, that when God appeared as Redeemer of all the world, he gave a display of his mercy and of his favor, such as he never vouchsafed before. This salvation it was impossible, as I have said, that the Gentile nations could have celebrated, had they been left without it. The words teach us that we can never be said to have rightly apprehended the redemption wrought out by Christ, unless our minds have been raised to the discovery of something incomparably wonderful about it.

Declare his glory among the heathen - Among the nations; the people who are not Hebrews. The meaning is, Let it be proclaimed in all lands, among all people. Let it not be confined to those who are professedly his people, but let it be announced everywhere. This is copied literally from 1-Chronicles 16:24.
His wonders among all people - His "marvelous works;" those things which are suited to produce astonishment in the mind. The reference is to those works and doings of God which lie so far beyond the power of any created being, and which by their vastness, their wisdom, and their benevolence, are suited to produce a deep impression on the human mind.

Declare his glory among the heathen - The heathen do not know the true God: as his being and attributes are at the foundation of all religion, these are the first subjects of instruction for the Gentile world. Declare, ספרו sapperu, detail, number out his glory, כבודו kebodo, his splendor and excellence.
His wonders among all people - Declare also to the Jews his wonders, נפלאותיו niphleothaiv, his miracles. Dwell on the works which he shall perform in Judea. The miracles which Christ wrought among the Jews were full proof that he was not only the Messiah, but the mighty power of God.

Declare his glory among the Heathen,.... What a glorious Person the Messiah is; the brightness of his Father's glory; having all the perfections of deity in him; how the glory of God appears in him, and in all that he has done; and especially in the work of redemption, in which the glory of divine wisdom, power, justice, truth, and faithfulness, love, grace, and mercy, is richly displayed; say what glory he is advanced unto, having done his work, being highly exalted, set at the right hand of God, and crowned with glory and honour; and what a fulness of grace there is in him, for the supply of his people; and what a glory is on him, which they shall behold to all eternity:
his wonders among all people: what a wonderful person he is, God manifest in the flesh; what wonderful love he has shown in his incarnation, obedience, sufferings, and death; what amazing miracles he wrought, and what a wonderful work he performed; the work of our redemption, the wonder of men and angels; declare his wonderful resurrection from the dead, his ascension to heaven, sitting at the right hand of God, and intercession for his people; the wonderful effusion of his Spirit, and the conquests of his grace, and the enlargement of his kingdom in the world; as also what wonders will be wrought by him when he appears a second time; how the dead will be raised and all will be judged.