30 Moreover Hezekiah the king and the princes commanded the Levites to sing praises to Yahweh with the words of David, and of Asaph the seer. They sang praises with gladness, and they bowed their heads and worshiped.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Moreover Hezekiah the king and the princes commanded the Levites to sing praise unto the LORD with the (o) words of David, and of Asaph the seer. And they sang praises with gladness, and they bowed their heads and worshipped.
(o) With the psalm mentioned in (1-Chronicles 16:8).
Moreover Hezekiah the king and the princes commanded the Levites to sing praise unto the Lord, with the words of David, and of Asaph the seer,.... Making use of psalms composed by the one and the other; Jarchi takes it to be the one hundred and fifth psalm, which begins, "O give thanks unto the Lord, call upon his name"; as in 1-Chronicles 16:7.
and they sang praises with gladness; the king and all the people:
and they bowed their heads and worshipped; made another adoration of the Divine Being, as deeply impressed with a sense of his greatness and goodness.
The king and the princes commanded the Levites to sing praise unto the Lord with the words (psalms) of David and of Asaph; and they sang praise with joy, and bowed themselves and worshipped. This verse does not mean that the Levites began to sing psalms at the king's command only after the sacrificial act and the instrumental music (2-Chronicles 29:27.) had been finished, but it forms a comprehensive conclusion of the description of the sacrificial solemnities. The author of the Chronicle considered it necessary to make express mention of the praising of God in psalms, already implicite involved in the משׁורר השּׁיר, 2-Chronicles 29:28, and to remark that the Levites also, at the conclusion of the song of praise, knelt and worshipped. Asaph is here called חזה, as Jeduthun (Ethan) is in 2-Chronicles 35:15, and Heman, 1-Chronicles 25:5.
*More commentary available at chapter level.