Psalms 122:4,5 - Joseph Benson’s Commentary on the Old and New Testaments

Whither the tribes go up, &c. Hebrew, Thither the tribes ascend; the tribes of the Lord Whom God hath chosen to be his people, and whom he hath invited and required to resort thither. Unto the testimony of Israel 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. To give thanks unto the name of the Lord To worship God; this one eminent part thereof being put for all the rest. For there are set thrones of judgment The supreme courts of justice for ecclesiastical and civil affairs. The thrones of the house of David The royal throne, allotted by God to David and to his posterity, and the inferior seats of justice established by and under his authority.