Albert Barnes Commentary Psalms 86:9

"All nations whom thou hast made shall come and worship before thee, O Lord; And they shall glorify thy name." — Psalms 86:9 (ASV)

All nations whom you have made shall come ... - In this verse, the psalmist expresses his belief that the conviction he held about God's ability to save—about his being the only true God—would eventually pervade all the nations of the earth; that they all would eventually be convinced that he was the true God, and would come and worship him alone. The evidence of God's existence and perfections seemed so clear to him that he did not doubt that all people would eventually also come to see it and to acknowledge him. Compare Isaiah 2:2-3; Isaiah 60:3–14; Psalms 2:8; Psalms 72:17.

And shall glorify your name - They shall honor you as the true God. They will renounce their idols; they will come and worship you.

This belief—this hope—is held out through the entire volume of revealed truth. It cheered and encouraged the hearts of the saints of the Old Testament and the New, and it may and should cheer and encourage our hearts.

It is no less certain because it seems to be long delayed. From a human viewpoint, this is all that is certain in the future. No man can predict what will occur regarding any of the existing political institutions on earth—either the monarchies of the old world or the republics of the new. No man can tell, in reference to the arts, to the sciences, to social life, to manners, and to the cities and towns that now exist on earth, what they will be in the far distant future.

Only one thing is certain in that future—that the kingdom of God will be set up, and that the Redeemer’s throne will be established over all the earth; that the time is to come when all nations shall come and worship before God, and shall glorify his name.