To the chief Musician, A Psalm [or] Song of David. The Targum makes the argument of this psalm to be the coming of the children of Israel out of Egypt, and the giving of the law on Mount Sinai; in which it is followed by many of the Jewish interpreters: but Aben Ezra rejects such an interpretation of it, and thinks that David composed it, concerning the war he had with the uncircumcised nations, the Philistines and others, 2Sa 8:1, &c.
And so the title of the Syriac version begins,"a psalm of David, when the kings prepared themselves to fight against him:''and Kimchi says it was composed on account of Sennacherib's army coming against Jerusalem, in the times of Hezekiah, and so delivered by David, under a spirit of prophecy concerning that affair; though he owns that some of their writers interpret it of the war of Gog and Magog, in the times of the Messiah they yet expect.
But they are much nearer the truth, who take it that it was written on occasion of the ark being brought to the city of David; seeing it begins with much the same words that Moses used when the ark set forward in his times, Nu 10:35; and the bringing of which was attended with great joy and gladness, 2Sa 6:14; such as the righteous are called upon to express in this psalm, Ps 68:3.
And this being a type of Christ, and of his ascending the holy hill of God, may be allowed of; for certain it is that this psalm treats of the coming of Christ, and of blessings by him, and of victory over his enemies; and particularly of his ascension to heaven, as most evidently appears from Eph 4:8; and from prophecies in it, concerning the calling of the Gentiles.
Wherefore the latter part of the Syriac inscription of it is very pertinent;"also a prophecy concerning the dispensation of the Messiah, and concerning the calling of the Gentiles to the faith.''Jarchi interprets Ps 68:31 of the Messiah.
Ver. 1. Let God arise,.... Which, as Kimchi observes, is either by way of prayer, or by way of prophecy; and in either way the sense is the same: for, if it is considered as a prayer, it is a prayer of faith that so it would be; or, if as a prophecy, it is certain that so it should be.
And this is to be understood of the same divine Person, whose chariots the angels are; who is said to be the "Adonai", or "Lord" in the midst of them; and of whom it is prophesied that he should ascend to heaven, Ps 68:17; even the Messiah, who is God over all.
And this "arising", attributed to him, may be interpreted either of his incarnation, his exhibition and manifestation in the flesh; which is sometimes called in Scripture a raising of him up, as in Ac 3:26; or of his resurrection from the dead, as it is interpreted by many of the ancients; which, as it was a certain thing, and previous to his ascension hereafter spoken of, so it was a proof of his deity; for though it was only the man that rose, who died and was buried, yet as in union with the divine Person of the Son of God, and who rose by virtue of that union; and thereby he was declared to be the Son of God with power.
Or else rather this is to be understood of his arising and exerting his power as a man of war, as a mighty and victorious hero, on the behalf of his people, and against his enemies; as he did when he arose and met Satan, the prince of the world, and engaged with all the powers of darkness; see Ps 45:3; and this sense is confirmed by what follows:let his enemies be scattered; let them also that hate him flee before him: the sense of these two clauses is the same; his enemies, and those that hate him, are the same persons; and to be scattered and flee express the same things; for enemies, being discomfited, flee and scatter.
Some interpret this of the watch set to guard our Lord's sepulchre; who, upon his rising from the dead, were filled with great fear and dread, and scattered, and fled to the priests, to acquaint them with what was done: others, of the Jewish nation in general, who were enemies to Christ; and hated him, and would not have him to reign over them; against whom he rose up and exerted his great strength; came in his kingdom and power against them; poured out his wrath upon them to the uttermost; which issued in the utter destruction of them, as a body politic; and in the entire dispersion of them in all countries, which remains until quite recently.