2 Chronicles 29:28-30

And all the assembly worshipped, and the singers sang, and the trumpeters sounded; all this continued until the burnt-offering was finished. And when they had made an end of offering, the king and all that were present with him bowed themselves and worshipped. Moreover Hezekiah the king and the princes commanded the Levites to sing praises unto Jehovah with the words of David, and of Asaph the seer. And they sang praises with gladness, and they bowed their heads and worshipped.