1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
9:26For in office are the four chiefs of the gatekeepers, they are Levites, and they have been over the chambers, and over the treasuries of the house of God,
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.