15 So the nations will fear the name of Yahweh; all the kings of the earth your glory.
*Minor differences ignored. Grouped by changes, with first version listed as example.
And the nations shall fear the name of Jehovah The prophet here describes the fruit which would result from the deliverance of the ancient tribes; which is, that thereby God's glory would be rendered illustrious among nations and kings. He tacitly intimates, that when the Church is oppressed, the Divine glory is at the same time debased; even as the God of Israel was, no doubt, at the period referred to, derided by the ungodly, as if he had been destitute of the power to succor his people. It is therefore declared, that if he redeem them, it will afford such a remarkable proof of his power as to constrain the Gentiles to reverence him whom they contemned. The concluding part of the 16th verse, He hath appeared in his glory, refers to the manifestation which God made of himself when he brought forth his Church from the darkness of death; even as it is said in another place concerning her first deliverance, "Judah was his sanctuary, and Israel his dominions" (Psalm 114:2) In like manner in the present passage, by again gathering to himself his people who were dispersed, and by raising his Church, as it were, from death to life, he appeared in his glory. It is surely no ordinary consolation to know that the love of God towards us is so great, that he will have his glory to shine forth in our salvation. It is true, that when the pious Jews were in the midst of their afflictions, the working of divine power was hidden from them; but they nevertheless always beheld it by the eye of faith, and in the mirror of the divine promises.
So the heathen - The nations. That is, The surrounding people, who hear what thou hast done for thy people, will see the evidence that thou art God, and learn to love and worship thee.
Shall fear the name of the Lord - Shall reverence and honor thee.
And all the kings of the earth thy glory - The sovereigns of the earth will be especially affected and impressed with thy majesty. If this refers to the return from the captivity at Babylon, then it means that that event would be particularly suited to impress the minds of the rulers of the world, as showing that God had all nations under his control; that he could deliver a captive people from the grasp of the mighty; that he was the friend of those who worshipped him, and that he would frown on oppression and wrong.
So the heathen shall fear the name of the Lord - It is granted that after the edict of Cyrus to restore and rebuild Jerusalem which was about four hundred and ninety years before Christ, the name of the true God was more generally known among the heathen; and the translating the Sacred Writings into Greek, by the command of Ptolemy Philadelphus, king of Egypt, about two hundred and eighty-five years before the Christian era, spread a measure of the light of God in the Gentile world which they had not before seen. Add to this the disperson of the Jews into different parts of the Roman empire, after Judea became a Roman province, which took place about sixty years before the advent of our Lord; and we may consider these as so many preparatory steps to the conversion of the heathen by the Gospel of our Lord Jesus Christ. And to this last general illumination of the Gentile world the psalmist must allude here, when he speaks of "the heathen fearing God's name, and all the kings of the earth his glory."
So the Heathen shall fear the name of the Lord,.... Whose name is reverend, and to be feared; especially the glorious and fearful name "Jehovah", expressive of the divine existence, of his eternity and immutability; though the name of the Lord frequently signifies himself, and here particularly the Messiah, the Son of God, in whom the name of the Lord is; the King of saints, whom all men will fear in the latter day, when the set time to favour Zion is come; will stand in awe of him, be careful of offending him, and will serve and worship him; even the very Heathen, who knew not God, and had no fear of him before their eyes, or in their hearts; the Pagan nations, whose kingdoms will become the kingdoms of our Lord, and of his Christ; see Revelation 11:15.
and all the kings of the earth thy glory; which may be supplied thus, either "all the kings of the earth shall see thy glory", or shall fear thee because of "thy glory"; the glory of Christ's person, as the Son of God; the glory of his offices, as Prophet, Priest, and King; especially the glory of his kingly office, to which that of the kings of the earth is not to be compared; the glory of his works of creation, providence, and redemption; and as it will be held forth in the Gospel, with which the earth will now be full, and so be filled with the glory of the Lord, Psalm 72:19, and will be so remarkable and conspicuous as to be taken notice of by the kings of the earth, even by all of them, who, when the glory of the Lord shall be risen in Zion, will come to the brightness of it, and look upon it, and admire it, and fear because of it, Isaiah 60:1.
God's favor to the Church will affect her persecutors with fear.
With וייראוּ we are told what will take place when that which is expected in Psalm 102:14 comes to pass, and at the same time the fulfilment of that which is longed for is thereby urged home upon God: Jahve's own honour depends upon it, since the restoration of Jerusalem will become the means of the conversion of the world - a fundamental thought of Isaiah 40:1 (cf. more particularly Isaiah 59:19; Isaiah 60:2), which is also called to mind in the expression of this strophe. This prophetic prospect (Isaiah 40:1-5) that the restoration of Jerusalem will take place simultaneously with the glorious parusia of Jahve re-echoes here in a lyric form. כּי, Psalm 102:17, states the ground of the reverence, just as Psalm 102:20 the ground of the praise. The people of the Exile are called in Psalm 102:18 הערער, from ערר, to be naked: homeless, powerless, honourless, and in the eyes of men, prospectless. The lxx renders this word in Jeremiah 17:6 ἀγριομυρίκη, and its plural, formed by an internal change of vowel, ערוער, in Jeremiah 48:6 ὄνος ἄγριος, which are only particularizations of the primary notion of that which is stark naked, neglected, wild. Psalm 102:18 is an echo off Psalm 22:25. In the mirror of this and of other Psalm written in times of affliction the Israel of the Exile saw itself reflected.
*More commentary available at chapter level.