2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
Chapter 30
21And the sons of Israel, those found in Jerusalem, make the feast of unleavened things seven days with great joy; and giving praise to Jehovah day by day are the Levites and the priests, with instruments of praise before Jehovah.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.