John Calvin observes in commenting on Psalm 72 that it contains a prophecy that the kings of the earth will be “vanquished” and, having been “subjugated,” they will become subjects to Christ as King. On v. 10 (“The kings of Tarshish and of the isles shall bring presents”), he writes:
By the words מנחה, minchah, a present, and אשכר, eshcar, a gift, must be understood any tribute or custom, and not voluntary offerings; for it is vanquished enemies, and the mark or token of their subjection, which are spoken of. These terms appear to be used intentionally in this place, in order to mitigate the odium attached to such a mark of subjugation; 137 as if the inspired writer indirectly reproved subjects, if they defrauded their kings of their revenues.
They thus become “subjects” in the Church–by which Calvin means the “spiritual kingdom of Christ”–to the Church’s king, and yet remain kings in their earthly station and vocation, and they prostrate themselves before Him as kings. As men given authority, they yield themselves to a higher authority. Thus on v. 11 (“And all kings shall prostrate themselves before him”):
This verse contains a more distinct statement of the truth, That the whole world will be brought in subjection to the authority of Christ. The kingdom of Judah was unquestionably never more flourishing than under the reign of Solomon; but even then there were only a small number of kings who paid tribute to him, and what they paid was inconsiderable in amount; and, moreover, it was paid upon condition that they should be allowed to live in the enjoyment of liberty under their own laws. While David then began with his own son, and the posterity of his son, he rose by the Spirit of prophecy to the spiritual kingdom of Christ; a point worthy of our special notice, since it teaches us that we have not been called to the hope of everlasting salvation by chance, but because our heavenly Father had already destined to give us to his Son. From this we also learn, that in the Church and flock of Christ there is a place for kings; whom David does not here disarm of their sword nor despoil of their crown, in order to admit them into the Church, but rather declares that they will come with all the dignity of their station to prostrate themselves at the feet of Christ.
As kings, so also nations: they will all bring their “gold” and offer their prayers for the blessing not only of earthly kings, but of Christ Himself. For Calvin, there seems to be both a present and eschatological dimension to the fulfillment of this prophecy (note his variation between the present and future tenses). In his own day, he saw it as the duty of kings to “prostrate themselves at the feet of Christ”; at the same time, some professors of the Christian faith are “true believers,” while others are “hypocrites [who] fret and murmur” against Christ in secret, such that the truly pious continue to pray for the “coming of the kingdom of God. Remarking on v. 15 (“And he shall live”), Calvin comments:
The words which follow are to be read indefinitely, that is to say, without determining any particular person; 140 as if it had been said, The gold of Arabia shall be given him, and prayers shall everywhere be made for his prosperity. There is thus again a repetition of what had been previously said concerning his power; for if Arabia shall pay him tribute, how vast an amount of riches will be gathered from so many countries nearer home! Christ, it is true, does not reign to hoard up gold, but David meant to teach by this figure, that even the nations which were most remote would yield such homage to him, as to surrender to him themselves and all that they possessed. It is no uncommon thing for the glory of the spiritual kingdom of Christ to be portrayed under images of outward splendor. David, in conformity with this usual style of Scripture, has here foretold that the kingdom of Christ would be distinguished for its wealth; but this is to be understood as referring to its spiritual character. ….Moreover, when he speaks of the common prayers of the people, by which they will commend the prosperity of the king to the care of God, he intimates that so well-pleased will they be with being his subjects, that they will account nothing so desirable as to yield entire submission to his authority. Many, no doubt, reject his yoke, and hypocrites fret and murmur secretly in their hearts, and would gladly extinguish all remembrance of Christ, were it in their power; but the affectionate interest here predicted is what all true believers are careful to cultivate, not only because to pray for earthly kings is a duty enjoined upon them in the Word of God, but also because they ought to feel a special desire and solicitude for the enlargement of the boundaries of this kingdom, in which both the majesty of God shines forth, and their own welfare and happiness are included. Accordingly, in Psalm 118:25, we will find a form of prayer dictated for the whole Church, That God would bless this king; not that Christ stands in need of our prayers, but because he justly requires from his servants this manifestation or proof of true piety; and by it they may also exercise themselves in praying for the coming of the kingdom of God.
This idea of the gradual unfolding of the extent of Christ’s universal kingdom would seem to be consistent with what Calvin had said on v. 8 (“He shall have dominion from sea to sea”):
As the Lord, when he promised his people the land of Canaan for an inheritance, assigned to it these four boundaries, (Genesis 15:18,) David intimates, that so long as the kingdom shall continue to exist, the possession of the promised land will be entire, to teach the faithful that the blessing of God cannot be fully realised, except whilst this kingdom shall flourish. He therefore declares that he will exercise dominion from the Red Sea, or from that arm of the Egyptian sea to the sea of Syria, which is called the Sea of the Philistines, 134 and also from the river Euphrates to the great wilderness. If it is objected that such narrow bounds do not correspond with the kingdom of Christ, which was to be extended from the rising of the sun to the going down thereof, we reply, that David obviously accommodates his language to his own time, the amplitude of the kingdom of Christ not having been, as yet, fully unfolded. He has therefore begun his description in phraseology well known, and in familiar use under the law and the prophets; and even Christ himself commenced his reign within the limits here marked out before he penetrated to the uttermost boundaries of the earth; as it is said in Psalm 110:2,
“The Lord shall send the rod of thy strength out of Zion.”
But, soon after, the Psalmist proceeds to speak of the enlarged extent of the empire of this king, declaring that the kings beyond the sea shall also be tributaries to him; and also that the inhabitants of the desert shall receive his yoke. The word ציים, tsiim, 135 which we have translated inhabitants of the desert, is, I have no doubt, to be understood of those who, dwelling towards the south, were at a great distance from the land of Canaan. The Prophet immediately adds, that the enemies of the king shall lick the dust in token of their reverence. This, as is well known, was in ancient times a customary ceremony among the nations of the East; and Alexander the Great, after he had conquered the East, wished to compel his subjects to practice it, from which arose great dissatisfaction and contentions, the Macedonians disdainfully refusing to yield such a slavish and degrading mark of subjection. 136 The meaning then is, that the king chosen by God in Judea will obtain so complete a victory over all his enemies, far and wide, that they shall come humbly to pay him homage.
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