(18) The Lord shall reign for ever and ever.--Compare Psalm 10:16; Psalm 29:10; Psalm 145:13; Psalm 146:10. In simplicity and consequent force the expression of the idea by Moses transcends all later ones.

Verse 18. - In terms most simple yet most grand, often imitated (Psalm 10:16; Psalm 29:10; Psalm 146:10, etc.), but never surpassed, the poet gives the final result of all God's providential and temporary arrangements, to wit, the eternal establishment of his most glorious kingdom. And here reaching the final consummation of all things (1 Corinthians 15:28), he will not weaken the impression made by adding another word, but ends his ode.

15:1-21 This song is the most ancient we know of. It is a holy song, to the honour of God, to exalt his name, and celebrate his praise, and his only, not in the least to magnify any man. Holiness to the Lord is in every part of it. It may be considered as typical, and prophetical of the final destruction of the enemies of the church. Happy the people whose God is the Lord. They have work to do, temptations to grapple with, and afflictions to bear, and are weak in themselves; but his grace is their strength. They are often in sorrow, but in him they have comfort; he is their song. Sin, and death, and hell threaten them, but he is, and will be their salvation. The Lord is a God of almighty power, and woe to those that strive with their Maker! He is a God of matchless perfection; he is glorious in holiness; his holiness is his glory. His holiness appears in the hatred of sin, and his wrath against obstinate sinners. It appears in the deliverance of Israel, and his faithfulness to his own promise. He is fearful in praises; that which is matter of praise to the servants of God, is very dreadful to his enemies. He is doing wonders, things out of the common course of nature; wondrous to those in whose favour they are wrought, who are so unworthy, that they had no reason to expect them. There were wonders of power and wonders of grace; in both, God was to be humbly adored.The Lord shall reign for ever and ever. Even that same Lord that is spoken of throughout this song, and to whom everything in it is ascribed, and who is no other than the Lord Jesus Christ; his reign began in eternity, when he was set up and anointed as King over God's holy hill of Zion, his church, the elect, who were a kingdom put under his care and charge, and which he will deliver up again one day, complete and perfect: he reigned throughout the whole Old Testament dispensation, and was acknowledged as well as prophesied of as a King; in his state of humiliation he had a kingdom, though not of this world, and upon his ascension to heaven he was made and declared Lord and Christ; and thenceforward his kingdom became very visible in the Gentile world, through the ministration of his word, accompanied by his almighty power; and ever since, more or less, he has ruled by his Spirit and grace in the hearts of many of the children of men, and, ere long, will take upon him his great power, and reign, in a more visible, spiritual, and glorious manner, in the midst of his churches, in the present state of things; and then he will reign with all his saints raised from the dead, for the space of a thousand years on earth, and after that will reign with them for ever in heaven, in the ultimate state of glory and happiness: the reigns of all others are but short, or, however, but for a time, but the reign of Christ is for ever and ever; the reigns of sin, and of Satan, and of death, have an end, but of the government of Christ, and the peace thereof, there will be no end; the reigns of the greatest potentates, emperors, and kings, of cruel and tyrannical princes, such as Pharaoh, are limited to a certain time, as is the reign of antichrist, which when ended, and the saints will have got the victory over him, the song of Moses and the Lamb will be sung; but Christ's kingdom is an everlasting kingdoms, and his dominion is evermore: the Targum of Jonathan is,"let us set a crown on the head of our Redeemer, whose is the royal crown, and he is King of kings in this world, and whose is the kingdom in the world to come, and whose it is and will be for ever and ever;''and to the same purpose is the Jerusalem Targum.