Psalms 47:9

The princes of the people are gathered together - The marginal reading is, “The voluntary of the people are gathered unto the people of the God of Abraham.” The word rendered “princes” - נדיב nâdı̂yb - means properly, voluntary, ready, prompt; then, generous, liberal; then, those of noble birth, princes, nobles. It is evidently used here in this latter sense. The word “people” here may mean either the people of Israel, or the people of other lands; but in this place it seems evidently to denote the latter. The words “are gathered together” may refer either to a voluntary or an involuntary assembling; meaning either that they came in chains as prisoners of war, subdued by the arms of the people of God, and thus rendering an involuntary tribute to their power and their religion; or that they came in a voluntary manner, and submitted themselves, acknowledging the God of Israel to be the true God. It seems to me that the connection requires that we should understand this in the former sense, as referring to the subjugation of the enemies of of the people of God, and to their being led along as captives, assembled thus from distant parts of the world as proof that the God of Israel reigned.

Even the people of the God of Abraham - The word “even” is not in the original. The meaning is, “to” the people of the God of Abraham; that is, they come and mingle with the people of the God of Abraham; or, they come as captives in war “to” that people, and confess in this manner that their God is the true God. The image is that of the assemblage of great numbers of foriegn princes and nobles as furnishing either a voluntary or involuntary acknowledgment of the fact that the God of Abraham was the true God, and that the people of Israel were his people.

For the shields of the earth belong unto God - Are of right his. This would seem to have been suggested by the marching in triumph of subdued and vanquished princes and warriors, their shields or weapons of war being borne along in the procession, demonstrating that Jehovah was King among the nations. It was seen in such a march that all those weapons of war “belonged” to him, or that he had a right to dispose of them, and to use them as he pleased.

He is greatly exalted - That is, one who can thus subdue nations, and lead along captive princes and warriors, “must” be a Being greatly exalted; a Being that has dominion over the nations of the earth. This completes the imagery in the psalm, and gives occasion for the shouts and the joys of triumph. God had shown that he was a great King over the earth. Princes and armies were subdued to his will. They were led along as captives, and were gathered together to the people of God, as if to acknowledge their own inferiority; and in this solemn manner the nations thus subdued owned Yahweh to be the true God. In a higher sense this will be true when all the earth shall be subdued by the power of truth, and when kings, and princes, and people everywhere shall come and acknowledge God, reigning through the Messiah, to be the King of all nations. Compare Isaiah 60.