Psalms 45:17

Thus the union of Christ and the Church triumphant is set forth. On the other hand, in regard to its component parts, the relation of Christ as head, as husband, &c., already exists, and as these parts form an institution in this world, it is by His union with it, and the gifts and graces with which He endows it, that a spiritual seed arises and spreads in the world.

I will make thy name to be remembered in all generations. Jehovah by the prophet's mouth promises to the Prince of Peace eternal fame as well as a continuous progeny. His name is his fame, his character, his person; these are dear to his people now—they never can forget them; and it shall be so as long as men exist. Names renowned in one generation have been unknown to the next era, but the laurels of Jesus shall ever be fresh, his renown ever new. God will see to this; his providence and his grace shall make it so. The fame of Messiah is not left to human guardianship; the Eternal guarantees it, and his promise never fails. All down the ages the memories of Gethsemane and Calvary shall glow with inextinguishable light; nor shall the lapse of time, the smoke of error, or the malice of hell be able to dim the glory of the Redeemer's fame. Therefore shall the people praise thee for ever and ever. They shall confess thee to be what thou art, and shall render to thee in perpetuity the homage due. Praise is due from every heart to him who loved us, and redeemed us by his blood; this praise will never be fully paid, but will be ever a standing and growing debt. His daily benefits enlarge our obligations, let them increase the number of our songs. Age to age reveals more of his love, let every year swell the volume of the music of earth and heaven, and let thunders of song roll up in full diapason to the throne of him that liveth, and was dead, and is alive for evermore, and hath the keys of hell and of death.

Therefore shall the people praise thee - They shall magnify the heavenly Bridegroom, and sing the wonderful displays of his love to the Church, his spouse. And the constant use of this Psalm in the Christian Church is a literal fulfillment of the prophecy.

I will make thy name to be remembered in all generations - The psalmist here evidently speaks as an inspired man, and the idea is that his thus singing the praises of the “king” - the Messiah - would be among the means of causing His name to be celebrated in all future ages. This song would go down to future times, and would serve to keep up the true knowledge of the Messiah in the far distant ages of the world. No one can doubt that this has been thus far accomplished; no one has any reason to doubt that this psalm “will be” among the means of keeping up the true knowledge of the Messiah, and of securing the remembrance of him upon the earth in all future periods of the world’s history. This psalm has been on million of lips, in praise of the Messiah; it will be on hundreds of million more in future times, as expressive of tender love for the Redeemer. Therefore shall the people praise thee forever and ever - Thy praise will never cease to be celebrated. The time will never come on earth when that praise will die away; and in all the eternity beyond the termination of this world’s history there never will arrive a period when thy name will not be honored, and when thy praises shall cease to be sung. Compare the notes at Rev 4:10; notes at Rev 5:9-13. Happy are they who join in that song on earth; happy they who will unite in it in the heavenly world!