Thither the tribes ascended. David here invests Jerusalem with two titles of honor, calling it the sacred and regularly appointed place for calling upon the name of God; and next, the royal sea, to which the whole people were to have recourse for obtaining justice. All our salvation depends upon these two points; first, that Christ has been given to us to be our priest; and, secondly, that he has been established king to govern us. This God showed to his ancient people under figures. The sanctuary erected on mount Zion was intended to keep their faith fixed upon the spiritual priesthood of Christ; and in like manner, by the kingdom of David, there was presented to their view an image of the kingdom of Christ. The Psalmist, therefore, says in the first place, that the tribes or families of God shall come to Jerusalem; and then he immediately adds, that there the seat of judgment is erected, on which he and his posterity will sit. The reason why it was the will of God that there should be only one temple and one altar was, that the people might not fall away to various superstitions. David therefore here declares that this place was appointed by God's own mouth, that all the families of God, or the twelve tribes, might there assemble from all quarters. To express more plainly how important it was, for this form of God's worship to be preserved pure and complete, he says that it was for a testimony The noun employed comes from the verb vd, ud, which signifies to bear witness, or to covenant. Now by the word in this place is denoted a mutual declaration or agreement between God and the people. When the tribes shall come thither, says the Prophet substantially, it will not be at random, because their fancy thus leads them, but because God by his own mouth invites them. The amount therefore is, that the holy assemblies which shall be kept at Jerusalem will not be vain and unprofitable, since God has made a covenant with his people, determining and appointing that place for his service. Whence we learn, that in judging of the true temple of God, it is necessary to take into account the doctrine taught. With respect to the time in which David lived, as God had adopted the Jewish people, and as it was his will that they should be employed in the external worship of his name, he prescribed to them a rule from which it was unlawful for them to deviate. Thus when the faithful assembled on mount Zion, it was not foolishness or inconsiderate zeal, or the impulse of their own minds, which brought them thither, as if they resembled those men whom we daily see inventing for themselves, out of their own heads, numberless kinds of divine worship; but they were led thither by the command of God, that they might worship him on mount Zion, by which word the Prophet intimates, that all other temples are unholy, and all other religions perverse and corrupt, because they do not correspond with the rule laid down in God's word. He next subjoins the end of this contract or covenant, which was that the name of God might be praised. And, indeed, as to yield to God the glory of all good things is the end of our adoption, so it is the end of all our actions.

Whither the tribes - The twelve tribes of the children of Israel.
Go up - To the great feasts and festivals of the nation. See Exodus 23:17. This language of going up is such as would be used anywhere respecting the capital of a nation - as it is now of London; but it was literally true of Jerusalem, since it was elevated far above most parts of the land.
The tribes of the Lord, unto the testimony of Israel - The "ark of testimony;" the ark within which were the tables of stone, containing the law considered as God's testimony or witnessing as to justice, right, equity, duty, truth. See Exodus 16:34; Exodus 25:16, Exodus 25:21; Exodus 40:3, Exodus 40:20; Exodus 30:6, Exodus 30:36; Exodus 31:18.
To give thanks unto the name of the Lord - To worship Yahweh - the name often being put for the Being himself. A main part of Hebrew worship was praise, and hence, this is often put for the whole of worship.

The testimony of Israel - There is the ark, where the presence of God is manifested; there is the holy of holies; and there all the tribes assembled to worship Jehovah. He no doubt alludes to the assembling of the tribes annually at each of the three grand national festivals.

Whither (d) the tribes go up, the tribes of the LORD, unto the testimony of Israel, to give thanks unto the name of the LORD.
(d) All the tribes according to God's covenant will come and pray there.

Whither the tribes go up, the tribes of the Lord,.... The twelve tribes of Israel; the males of them went up three times a year to Jerusalem to worship, at the feasts of passover, pentecost, and tabernacles; and was typical of the church of Christ, where the worship of God is carried on, his word preached, and ordinances administered; and whither saints go and attend for their own profit and the glory of God; this is the city of our solemnities, Isaiah 33:20;
unto the testimony of Israel; the ark of the testimony a symbol of the divine Presence. The law is called a testimony, because it testified the will of God to be done; this was put into an ark, which had its name from thence, and was typical of Christ, the end of the law for righteousness; and over the ark was the divine Presence: hither the tribes came to worship God, and to consult him;
"who (the Targum here says) testifies to Israel, that his divine Majesty dwells among them, when they go to confess unto the name of the Lord.''
The Gospel is called the testimony of Christ; and it is what testifies concerning his person, office, and grace, unto the Israel of God; and who go up to the house of God in order to hear it;
to give thanks unto the name of the Lord; for all his mercies and blessings, both temporal and spiritual; and which should be acknowledged, not only in a private manner, but publicly in the house of God; see Psalm 100:4.

testimony--If "unto" is supplied, this may denote the ark (Exodus 25:10-21); otherwise the act of going is denoted, called a testimony in allusion to the requisition (Deuteronomy 16:16), with which it was a compliance.

The imposing character of the impression was still greatly enhanced by the consideration, that this is the city where at all times the twelve tribes of God's nation (which were still distinguished as its elements even after the Exile, Romans 11:1; Luke 2:36; James 1:1) came together at the three great feasts. The use of the שׁ twice as equivalent to אשׁר is (as in Canticles) appropriate to the ornamental, happy, miniature-like manner of these Songs of degrees. In שׁשּׁם the שׁם is, as in Ecclesiastes 1:7, equivalent to שׁמּה, which on the other hand in Psalm 122:5 is no more than an emphatic שׁם (cf. Psalm 76:4; Psalm 68:7). עלוּ affirms a habit (cf. Job 1:4) of the past, which extends into the present. עדוּת לישׂראל is not an accusative of the definition or destination (Ew. ֗300, c), but an apposition to the previous clause, as e.g., in Leviticus 23:14, Leviticus 23:21, Leviticus 23:31 (Hitzig), referring to the appointing in Exodus 23:17; Exodus 34:23; Deuteronomy 16:16. The custom, which arose thus, is confirmed in Psalm 122:5 from the fact, that Jerusalem, the city of the one national sanctuary, was at the same time the city of the Davidic kingship. The phrase ישׁב למשׁפּט is here transferred from the judicial persons (cf. Psalm 29:10 with Psalm 9:5; Psalm 28:6), who sit in judgment, to the seats (thrones) which are set down and stand there fro judgment (cf. Psalm 125:1, and θρόνος ἔκειτο, Revelation 4:2). The Targum is thinking of seats in the Temple, viz., the raised (in the second Temple resting upon pillars) seat of the king in the court of the Israelitish men near the שׁער העליון, but למשׁפט points to the palace, 1-Kings 7:7. In the flourishing age of the Davidic kingship this was also the highest court of judgment of the land; the king was the chief judge (2-Samuel 15:2; 1-Kings 3:16), and the sons, brothers, or kinsmen of the king were his assessors and advisers. In the time of the poet it is different; but the attractiveness of Jerusalem, not only as the city of Jahve, but also as the city of David, remains the same for all times.

The tribes - Whom God has chosen to be his people. Unto - Unto the ark, called the testimony, because of the tables of the covenant laid up in it, which are called God's testimony, and the tables of the testimony. And this is called the testimony of, or to Israel, because it was given by God to them. Give thanks - To worship God; this one eminent part thereof being put for all the rest.