WEB
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.
YLT
And Hezekiah the king saith, and the princes, to the Levites to give praise to Jehovah in the words of David, and of Asaph the seer, and they praise—unto joy, and they bow, and do obeisance.